TY - GEN
T1 - On combining distributed joint source-channel-network coding and turbo equalization in multiple access relay networks
AU - Del Ser, Javier
AU - Crespo, Pedro M.
AU - Khalaj, Babak H.
AU - Gutiérrez-Gutiérrez, Jesús
PY - 2007
Y1 - 2007
N2 - We consider a multiple access relay channel where two sources S1 and S2 send their data to a common destination node aided by a shared relay node. In this paper we extend previous work on this topic by assuming that the output of both information sources are correlated with memory. Furthermore, we consider frequency-selective fading channels, which introduce inter-symbol interference among the transmitted symbols. In this context, we propose an iterative receiver which comprises Turbo Maximum a Posteriori (MAP) equalization and distributed source-channelnetwork decoding in an iterative fashion. Various relaying strategies such as network coding or time multiplexing are analyzed in detail. In addition, a suboptimal but less complex Minimum Mean Square Error (MMSE) linear equalizer is also utilized to account for communication scenarios with constrained complexity. Simulation results show that network coding based strategy outperforms, in all cases, the other considered forwarding schemes.
AB - We consider a multiple access relay channel where two sources S1 and S2 send their data to a common destination node aided by a shared relay node. In this paper we extend previous work on this topic by assuming that the output of both information sources are correlated with memory. Furthermore, we consider frequency-selective fading channels, which introduce inter-symbol interference among the transmitted symbols. In this context, we propose an iterative receiver which comprises Turbo Maximum a Posteriori (MAP) equalization and distributed source-channelnetwork decoding in an iterative fashion. Various relaying strategies such as network coding or time multiplexing are analyzed in detail. In addition, a suboptimal but less complex Minimum Mean Square Error (MMSE) linear equalizer is also utilized to account for communication scenarios with constrained complexity. Simulation results show that network coding based strategy outperforms, in all cases, the other considered forwarding schemes.
UR - https://www.scopus.com/pages/publications/47049120219
U2 - 10.1109/WIMOB.2007.4390812
DO - 10.1109/WIMOB.2007.4390812
M3 - Conference contribution
AN - SCOPUS:47049120219
SN - 0769528899
SN - 9780769528892
T3 - 3rd IEEE International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2007
BT - 3rd IEEE International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2007
T2 - 3rd IEEE International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2007
Y2 - 8 October 2007 through 10 October 2007
ER -