Multi-threaded Network Planning

Detailed Description

#include <stdio.h>
#include <string>
#include <iostream>

#ifdef _OPENMP
#include <omp.h>
#endif

#include "network_planning_parallel.h"

#ifndef API_DATA_FOLDER
#define API_DATA_FOLDER "../../api/winprop/data/"
#endif // !API_DATA_FOLDER
#define SERVICES_LTE 13
#define MAX_TRX 3

#define MAX_THREADS 4


int main(int argc, char** argv)
{

	/* ----------------- network planning parameters for LTE --------------------- */
	const char* TransmissionMode_Name[SERVICES_LTE] = {
		"QPSK - R=1_8",
		"QPSK - R=1_5",
		"QPSK - R=1_4",
		"QPSK - R=1_3",
		"QPSK - R=1_2",
		"QPSK - R=2_3",
		"QPSK - R=4_5",
		"16 QAM - R=1_2",
		"16 QAM - R=2_3",
		"16 QAM - R=4_5",
		"64 QAM - R=2_3",
		"64 QAM - R=3_4",
		"64 QAM - R=4_5" };
	double TransmissionMode_Bitrate[SERVICES_LTE] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
	double TransmissionMode_SNIR[SERVICES_LTE] = { -5.4, -3.1, -2.2, -0.4, 1.6, 3.5, 5.6, 7.0, 10.7, 11.8, 14.3, 16.1, 17.2 };
	int TransmissionMode_Coderate_K[SERVICES_LTE] = { 1, 1, 1, 1, 1, 2, 4, 1, 2, 4, 2, 3, 4 };
	int TransmissionMode_Coderate_N[SERVICES_LTE] = { 8, 5, 4, 3, 2, 3, 5, 2, 3, 5, 3, 4, 5 };
	int TransmissionMode_MCS[SERVICES_LTE] = { 2, 2, 2, 2, 2, 2, 2, 4, 4, 4, 6, 6, 6 };
	double TransmissionMode_Backoff[SERVICES_LTE] = { 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 3.0, 3.0, 3.0, 3.0, 3.0, 3.0 };

	double AntennaX[MAX_TRX] = { 5.920, 63.860, 63.400 };
	double AntennaY[MAX_TRX] = { 6.240, -22.870, 12.610 };
	int AntennaCarrier[MAX_TRX] = { 1, 2, 2 };
	char AntennaName[MAX_TRX][500] = { "Site 1", "Site 2", "Site 3" };
	int MapIndex[MAX_TRX];

	WinProp_Result *MaxThroughput = NULL;
	WinProp_Result *MaxSNIR = NULL;

    WinProp_Result PropResults[MAX_TRX];
    WinProp_Antenna Antenna[MAX_TRX];
	
	WinProp_Callback Callback;
	WinProp_Structure_Init_Callback(&Callback);

	WinProp_Carrier Carrier;
	WinProp_Structure_Init_Carrier(&Carrier);
	
	int                 Signal_for_MIMO = -1, Stream_for_MIMO = -1;
	char                ProjectName[200];
	double              Frequency = 1800.0;
	int                 NrPredictionHeights = 1;
	double              PredictionHeightsMulti[2] = { 1.5, 5.2};

	int Error = 0;
	int ProjectHandle = 0;
	NrPredictionHeights = sizeof(PredictionHeightsMulti)/sizeof(PredictionHeightsMulti[0]);

	/* ------------ Create new network project: LTE air interface ---------------- */
	if (Error == 0)
	{
		Error = WinProp_Net_Project_Open(&ProjectHandle, NET_AIRINTERFACE_LTE_GENERIC, NULL);
	}

	// Enable computation of network planning using multiple threads
	if (Error == 0)
	{
		int IntValue = MAX_THREADS;
		Error = WinProp_Net_Project_Para_Set(ProjectHandle, NET_SETTINGS_NUMBER_THREADS, NULL, &IntValue, NULL);
	}

	// TDD mode
	if (Error == 0)
	{
		int IntValue = 1; 
		Error = WinProp_Net_Project_Para_Set(ProjectHandle, NET_PARA_DUPLEX_SUBMODE, NULL, &IntValue, NULL);
	}

	/* Set name of project (optional). */
	if (Error == 0) {
		sprintf(ProjectName, "%s", "LTE Project");
		Error = WinProp_Net_Project_Para_Set(ProjectHandle, NET_PARA_PROJECTNAME, NULL, NULL, ProjectName);
	}

	/* Retreive carrier separation (must be 20 MHz). */
	double CarrierSeparation = 0.;
	if (Error == 0)
	{
		Error = WinProp_Net_Project_Para_Get(ProjectHandle, NET_PARA_CARRIER_SEPARATION, &CarrierSeparation, NULL, NULL);
	}

	/* Add some carriers. */
	if (Error == 0)
	{
		CarrierSeparation *= 0.000001;
		for (int CurrentCarrier = 0; CurrentCarrier < 3; CurrentCarrier++)
		{
			double FrequencyUL = 1930.0 + (CurrentCarrier * CarrierSeparation);
			double FrequencyDL = 2120.0 + (CurrentCarrier * CarrierSeparation);
			Error = WinProp_Net_Carrier_Add(ProjectHandle, CurrentCarrier + 1);
			Error = WinProp_Net_Carrier_Para_Set(
				ProjectHandle, CurrentCarrier + 1, NET_PARA_CARRIER_FREQ_DL, &FrequencyUL, NULL, NULL);
			Error = WinProp_Net_Carrier_Para_Set(
				ProjectHandle, CurrentCarrier + 1, NET_PARA_CARRIER_FREQ_UL, &FrequencyDL, NULL, NULL);
		}
	}

	/* Check if number of carriers is correct. */
	if (Error == 0)
	{
		int NrCarriers = 0;
		Error = WinProp_Net_Project_Para_Get(ProjectHandle, NET_PARA_CARRIERS, NULL, &NrCarriers, NULL);
		if (Error == 0)
		{
			if (NrCarriers != 3)
				Error = 1;
		}
	}

	/* Add now 13 transmission modes for LTE. */
	if (Error == 0)
	{
		for (int CurrentService = 0; CurrentService < SERVICES_LTE; CurrentService++)
		{
			/* Add new service. */
			char ServiceName[500];
			sprintf(ServiceName, "%s", TransmissionMode_Name[CurrentService]);
			Error = WinProp_Net_TransmissionMode_Add(ProjectHandle, ServiceName, CurrentService);

			/* Set position/priority. */
			int IntValue = SERVICES_LTE - CurrentService;
			Error = WinProp_Net_TransmissionMode_Para_Set(
				ProjectHandle, CurrentService, NET_PARA_TRANS_MODE_POSITION, NULL, &IntValue, NULL);

			/* Set bitrate. */
			double ParaValue = TransmissionMode_Bitrate[CurrentService];
			Error = WinProp_Net_TransmissionMode_Para_Set(
				ProjectHandle, CurrentService, NET_PARA_TRANS_MODE_BITRATE_DL, &ParaValue, NULL, NULL);
			Error = WinProp_Net_TransmissionMode_Para_Set(
				ProjectHandle, CurrentService, NET_PARA_TRANS_MODE_BITRATE_UL, &ParaValue, NULL, NULL);

			/* Set code rate. */
			IntValue = TransmissionMode_Coderate_K[CurrentService];
			Error = WinProp_Net_TransmissionMode_Para_Set(
				ProjectHandle, CurrentService, NET_PARA_TRANS_MODE_CODERATE_K_DL, NULL, &IntValue, NULL);
			Error = WinProp_Net_TransmissionMode_Para_Set(
				ProjectHandle, CurrentService, NET_PARA_TRANS_MODE_CODERATE_K_UL, NULL, &IntValue, NULL);
			IntValue = TransmissionMode_Coderate_N[CurrentService];
			Error = WinProp_Net_TransmissionMode_Para_Set(
				ProjectHandle, CurrentService, NET_PARA_TRANS_MODE_CODERATE_N_DL, NULL, &IntValue, NULL);
			Error = WinProp_Net_TransmissionMode_Para_Set(
				ProjectHandle, CurrentService, NET_PARA_TRANS_MODE_CODERATE_N_UL, NULL, &IntValue, NULL);

			/* Set number of resource blocks. */
			IntValue = 1;
			Error = WinProp_Net_TransmissionMode_Para_Set(
				ProjectHandle, CurrentService, NET_PARA_TRANS_MODE_RESOURCE_BLOCKS_DL, NULL, &IntValue, NULL);
			Error = WinProp_Net_TransmissionMode_Para_Set(
				ProjectHandle, CurrentService, NET_PARA_TRANS_MODE_RESOURCE_BLOCKS_UL, NULL, &IntValue, NULL);

			/* Set overhead ratio. */
			ParaValue = 11.1;
			Error = WinProp_Net_TransmissionMode_Para_Set(
				ProjectHandle, CurrentService, NET_PARA_TRANS_MODE_OVERHEAD_RATIO_UL, &ParaValue, NULL, NULL);
			Error = WinProp_Net_TransmissionMode_Para_Set(
				ProjectHandle, CurrentService, NET_PARA_TRANS_MODE_OVERHEAD_RATIO_DL, &ParaValue, NULL, NULL);

			/* Set required SNIR. */
			ParaValue = TransmissionMode_SNIR[CurrentService];
			Error = WinProp_Net_TransmissionMode_Para_Set(
				ProjectHandle, CurrentService, NET_PARA_TRANS_MODE_SNIR_DL, &ParaValue, NULL, NULL);
			Error = WinProp_Net_TransmissionMode_Para_Set(
				ProjectHandle, CurrentService, NET_PARA_TRANS_MODE_SNIR_UL, &ParaValue, NULL, NULL);

			/* Set modulation scheme. */
			IntValue = TransmissionMode_MCS[CurrentService];
			Error = WinProp_Net_TransmissionMode_Para_Set(
				ProjectHandle, CurrentService, NET_PARA_TRANS_MODE_MODULATION_UL, NULL, &IntValue, NULL);
			Error = WinProp_Net_TransmissionMode_Para_Set(
				ProjectHandle, CurrentService, NET_PARA_TRANS_MODE_MODULATION_DL, NULL, &IntValue, NULL);

			/* Set power backoff. */
			ParaValue = TransmissionMode_Backoff[CurrentService];
			Error = WinProp_Net_TransmissionMode_Para_Set(
				ProjectHandle, CurrentService, NET_PARA_TRANS_MODE_POWER_BACKOFF_UL, &ParaValue, NULL, NULL);
			Error = WinProp_Net_TransmissionMode_Para_Set(
				ProjectHandle, CurrentService, NET_PARA_TRANS_MODE_POWER_BACKOFF_DL, &ParaValue, NULL, NULL);

			/* Get bitrate in kBit/s for current transmission mode. */
			/* Bitrate is automatically computed based on parameters previously set and general air interface parameters. */
			Error = WinProp_Net_TransmissionMode_Para_Get(
				ProjectHandle, CurrentService, NET_PARA_TRANS_MODE_BITRATE_DL, &ParaValue, NULL, NULL);
			TransmissionMode_Bitrate[CurrentService] = ParaValue;
		}
	}

	/* Check if number of services is correct. */
	if (Error == 0)
	{
		int NrServices = 0;
		Error = WinProp_Net_Project_Para_Get(ProjectHandle, NET_PARA_SERVICES, NULL, &NrServices, NULL);
		if (Error == 0)
		{
			if (NrServices != SERVICES_LTE)
				Error = 1;
		}
	}

	/* Set minimum required SNIR. */
	if (Error == 0)
	{
		double ParaValue = -5.4;
		Error = WinProp_Net_Project_Para_Set(ProjectHandle, NET_PARA_CELL_ASSIGNMENT_MIN_REQ_SNIR, &ParaValue, NULL, NULL);
	}

	/* Disable min power criterion. */
	if (Error == 0)
	{
		int IntValue = 0;
		Error = WinProp_Net_Project_Para_Set(ProjectHandle, NET_PARA_CELL_ASSIGNMENT_MIN_REQ_POWER_USED, NULL, &IntValue, NULL);
	}

	/* Set cell assignment mode. */
	if (Error == 0)
	{
		int IntValue = 0;
		Error = WinProp_Net_Project_Para_Set(ProjectHandle, NET_PARA_CELL_ASSIGNMENT_MODE, NULL, &IntValue, NULL);
	}

	/* Set cell assignment signals. */
	if (Error == 0)
	{
		int IntValue = 0;
		Error = WinProp_Net_Project_Para_Set(ProjectHandle, NET_PARA_CELL_ASSIGNMENT_SIGNALS, NULL, &IntValue, NULL);
	}

	/* Set resolution for result matrix. */
	if (Error == 0)
	{
		double ParaValue = 1.0;
		Error = WinProp_Net_Project_Para_Set(ProjectHandle, NET_PARA_RESOLUTION, &ParaValue, NULL, NULL);
	}

	/* Set size of area: Automatic mode. */
	if (Error == 0)
	{
		int IntValue = 0;
		Error = WinProp_Net_Project_Para_Set(ProjectHandle, NET_PARA_AREA_MODE, NULL, &IntValue, NULL);
	}

	/* Set paths for additional output in WinProp file format. */
	if (Error == 0)
	{
		Error = WinProp_Net_Project_Para_Set(ProjectHandle, NET_PARA_OUTPUT_WINPROP, NULL, NULL, API_DATA_FOLDER "output");
	}

	/* Compute wave propagation for three transmitters                          */
	/* Init. antennas and results */
	for (int Count = 0; Count < MAX_TRX && Error == 0; Count++)
	{
		/* Init of antenna */
		WinProp_Structure_Init_Antenna(&Antenna[Count]);
		/* Determine frequency for antenna. */
		Frequency = 2120.0 + ((AntennaCarrier[Count] - 1) * CarrierSeparation);

		/* Set properties now. */
		AntennaPropertiesSet(&Antenna[Count], AntennaX[Count], AntennaY[Count], 2.5, Frequency, AntennaName[Count], Count + 1);

		// Init of carrier settings 
		WinProp_Structure_Init_Carrier(&Carrier);

		// set carrier properties 
		Carrier.CarrierID = AntennaCarrier[Count];
		Carrier.SystemID = Signal_for_MIMO;
		Carrier.MimoID = Stream_for_MIMO;
		CarrierPropertiesSet(&Antenna[Count], &Carrier);

		/* Init of result */
		WinProp_Structure_Init_Result(&PropResults[Count]);
	}
	/* Compute wave propagation for all antennas. */
	if (Error == 0)
	{
		WavePropagation(
			MAX_TRX,
			Antenna,
			PropResults,
			NrPredictionHeights,
			PredictionHeightsMulti,
			API_DATA_FOLDER "indoor/IndoorVectordatabase.idb");
	}

	/* Now do network planning */
	/* Add all propagation maps which have been computed before. */
	if (Error == 0)
	{
		for (int Count = 0; Count<MAX_TRX; Count++)
		{
			if (Error == 0)
			{
				Error = WinProp_Net_PropagationMap_Add(ProjectHandle, &MapIndex[Count], &Antenna[Count], &PropResults[Count]);
			}
		}
	}

	if (Error == 0)
	{
		char HeightString[500];
		sprintf(HeightString, "%s", "");

		/* Generate string with height values, e.g. a string like "1.5 2.5 3.5". */
		for (int Height = 0; Height<NrPredictionHeights; Height++)
		{
			/* Add current height to string. */
			sprintf(HeightString, "%s%.2f ", HeightString, PredictionHeightsMulti[Height]);
		}

		/* Send heights to WinProp API. */
		Error = WinProp_Net_Project_Para_Set(ProjectHandle, NET_PARA_HEIGHT_MULTIPLE, NULL, NULL, HeightString);

		/* Start computation. */
		if (Error == 0)
		{
			Callback.Percentage = CallbackProgress;
			Callback.Message = CallbackMessage;
			Callback.Error = CallbackError;
			Error = WinProp_Net_Project_Compute(ProjectHandle, &Callback);
		}
	}

	// -----------------------------------------------------------------------------
	// Retrieve results
	// -----------------------------------------------------------------------------
	/* As an example: retrieve max. throughput (kbps) per pixel. */
	if (Error == 0)
	{
		Error = WinProp_Net_NetworkMap_Get(ProjectHandle, -1, NET_RESULT_MAX_THROUGHPUT, &MaxThroughput);
	}

	/* Write max. throughput result to ASCII file. */
	if (Error == 0)
	{
		char NameForOutput[200];
		sprintf(NameForOutput, API_DATA_FOLDER "output/%s Max Throughput.txt", ProjectName);
		write_ascii(MaxThroughput, NameForOutput);
	}

	/* As another example: retrieve SNIR (dB) per pixel. */
	if (Error == 0)
	{
		Error = WinProp_Net_NetworkMap_Get(ProjectHandle, -1, NET_RESULT_SNIR, &MaxSNIR);
	}

	/* Write max. throughput result to ASCII file. */
	if (Error == 0)
	{
		char NameForOutput[200];
        sprintf(NameForOutput, API_DATA_FOLDER "output/%s Max SNIR.txt", ProjectName);
        write_ascii(MaxSNIR, NameForOutput);
	}
	
	// --------------------------------------------------------------------------
	// Free Memory
	// --------------------------------------------------------------------------
	/* Free propagation results. */
	for (int Count = 0; Count<MAX_TRX; Count++)
		WinProp_FreeResult(&PropResults[Count]);
	/* Close network project. */
	Error = WinProp_Net_Project_Close(ProjectHandle);

	return 0;
}

int _STD_CALL CallbackMessage(const char * Text)
{
	if (Text == nullptr)
		return 0;

	std::cout << "\n" << Text;

	return(0);
}

int _STD_CALL CallbackError(const char * Text, int Error)
{
	if (Text == nullptr)
		return 0;

	std::cout << "\n";

#ifdef __LINUX
	std::cout << "\033[31m" << "Error (" << Error << "): "; // highlight error in red color
#else
	HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
	SetConsoleTextAttribute(hConsole, FOREGROUND_RED);
	std::cout << "Error (" << Error << "): ";
#endif // __LINUX
	std::cout << Text;

#ifdef __LINUX
	std::cout << "\033[0m"; // highlight error in red color
#else
	SetConsoleTextAttribute(hConsole, FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_GREEN);
#endif // __LINUX

	return 0;
}

int _STD_CALL CallbackProgress(int value, const char* text)
{
	char Line[200];

	sprintf(Line, "\n%d%% %s", value, text);
	std::cout << Line;

	return(0);
}

// Helper functions
void write_ascii(const WinProp_Result* Resultmatrix, const char* Filename) {
	FILE* OutputFile = fopen(Filename,"w");
	if (OutputFile)
	{
		/* Loop through WinPropall pixels. */
		for (int x = 0; x < Resultmatrix->Columns; x++)
		{
			for (int y = 0; y < Resultmatrix->Lines; y++)
			{
				/* Compute real coordinates. */
				double Coordinate_X = Resultmatrix->LowerLeftX + ((double)x + 0.5) * Resultmatrix->Resolution;
				double Coordinate_Y = Resultmatrix->LowerLeftY + ((double)y + 0.5) * Resultmatrix->Resolution;

				/* Check if pixel was computed or not */
				if (Resultmatrix->Matrix[0][x][y] > -1000)
					fprintf(OutputFile, "%.2f\t%.2f\t%.2f\n", Coordinate_X, Coordinate_Y, Resultmatrix->Matrix[0][x][y]);
			}
		}

		/* Close file. */
		fclose(OutputFile);
	}
	else
		printf("\nCould not open the File: %s for writing.\n",Filename);
}

void AntennaPropertiesSet(
	WinProp_Antenna *Antenna,
	double CoordinateX,
	double CoordinateY,
	double Height,
	double Frequency,
	char *Name,
	int Id)
{
	Antenna->Longitude_X = CoordinateX;
	Antenna->Latitude_Y = CoordinateY;
	Antenna->Height = Height;
	Antenna->Power = 20.0;
	Antenna->PowerMode = 0;
	Antenna->Frequency = Frequency;
	Antenna->Name = Name;
	Antenna->Model = WINPROP_MODEL_COST231;
	Antenna->Id = Id;
}

void CarrierPropertiesSet(WinProp_Antenna *Antenna, const WinProp_Carrier *Carrier)
{
	Antenna->Carriers.CarrierID = Carrier->CarrierID;
	Antenna->Carriers.SystemID = Carrier->SystemID;
	Antenna->Carriers.MimoID = Carrier->MimoID;
}

// Wave propagation
void WavePropagation(
	int NumberAntennas,
	const WinProp_Antenna *Antenna,
	WinProp_Result *Result,
	int NrHeights,
	const double *Heights,
	const char* database) 
{
	// init
	int Error = 0;
	WinProp_Area Area;
	WinProp_Structure_Init_Area(&Area);

	// Open scenario
	WinProp_Scenario Scenario;
	WinProp_Structure_Init_Scenario(&Scenario);
	Scenario.Scenario = WINPROP_SCENARIO_INDOOR;
	char VectorDatabase[500];
	sprintf(VectorDatabase, "%s", database);
	Scenario.VectorDatabase = VectorDatabase;

	WinProp_Callback Callback;
	WinProp_Structure_Init_Callback(&Callback);

	Callback.Percentage = CallbackProgress;
	Callback.Message = CallbackMessage;
	Callback.Error = CallbackError;

	/* Define area */
	if (Error == 0)
	{
		/* Definition of area. */
		Area.Heights = (double*)malloc(sizeof(double) * NrHeights);
		if (Area.Heights != nullptr)
        {
            Area.NrHeights = NrHeights;
			for (int C = 0; C < NrHeights; C++)
				Area.Heights[C] = Heights[C];
		}
		Area.LowerLeftX = -4.680001;
		Area.LowerLeftY = -44.200001;
		Area.UpperRightX = 101.399999;
		Area.UpperRightY = 42.799999;
		Area.Resolution = 1.0;
	}

	// ------------------------------------------------------------------------
	// Compute wave propagation
	// ------------------------------------------------------------------------
	// Set the number of parallel threads.
#ifdef _OPENMP
	omp_set_num_threads(MAX_THREADS);
#endif

	// As an example we're computing the same antenna location in the same environment with 16 different frequencies.
#pragma omp parallel for schedule(dynamic,1) shared(Area, Antenna, Scenario, Callback, Result)
	for (int Count = 0; Count < NumberAntennas; Count++)
	{
		/* Open new project. */
		int PredictionHandle = 0;
		if (Error == 0)
		{
			Error = WinProp_Open(&PredictionHandle, &Scenario, &Callback);
		}

		if (Error == 0)
		{
			WinProp_Result* DummyResult = nullptr;
			Error = WinProp_Predict(PredictionHandle, &Antenna[Count], &Area, NULL, 0, NULL, NULL, &DummyResult, NULL, NULL, NULL, NULL, NULL, NULL);
			if (Error == 0) {
				/* Copy result. */
				WinProp_CopyResult(&Result[Count], DummyResult);
			}
			else {
				/* Error during prediction. Print error message. */
				printf("\n\nSimulation returned with Error %d\n\n",Error);
			}
		}

		// Close project
		WinProp_Close(PredictionHandle);
	}

	// Free memory
	if (Area.Heights)
		free(Area.Heights);
}