server.h

This a framework to test new ideas in transmission technology. Actual development is a LDPC-coder in

/***************************************************************************
    server.h  -  The things needed for the channel-simulations
                            -------------------
    begin                :  2002
    authors              :  Linus Gasser
    emails               :  [e-mail]
 ***************************************************************************/

/***************************************************************************
                                 Changes
                                 -------
 date - name - description
 02-12-16 - ineiti - begin

 **************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#include "antenna.h"
#include <complex.h>

/**
 * @short maximum clients and the channel-structures
 */

#define MAX_CLIENTS 16
#define CHANNEL_LENGTH 1
#define BLOCK_BUFFER 16
#define RX_TX_DELAY 0
#if 0
#define BLOCK_ACT_TX ( tx_block % BLOCK_BUFFER )
#define BLOCK_ACT_RX ( ( tx_block + RX_TX_DELAY ) % BLOCK_BUFFER )
#else
#define BLOCK_ACT_TX(x) ( ( x % BLOCK_BUFFER ) + 1 )
#define BLOCK_ACT_RX(x) ( ( ( x + RX_TX_DELAY ) % BLOCK_BUFFER ) + 1 )
#endif

extern double rx_gain[MAX_CLIENTS], tx_gain[MAX_CLIENTS];

extern char tx_signal_buffer[MAX_CLIENTS][BLOCK_BUFFER+1][DAQ_DMA_BLOCK_SIZE_BYTES];
extern char rx_signal_buffer[MAX_CLIENTS][BLOCK_BUFFER+1][DAQ_DMA_BLOCK_SIZE_BYTES];

extern int nbr_clients, tx_block;
extern double channel_tap[MAX_CLIENTS+1][MAX_CLIENTS+1][CHANNEL_LENGTH];
extern double complex channel_tap_cplx[MAX_CLIENTS+1][MAX_CLIENTS+1][CHANNEL_LENGTH];
struct client_params{
  int sockfd;
  int id;
  int gid;
  pthread_t thr;
};

extern struct client_params client[MAX_CLIENTS];