Effect of Hidden Terminals on the Performance of IEEE 802.11 MAC Protocol
LCN '98 Proceedings of the 23rd Annual IEEE Conference on Local Computer Networks
Wireless LAN: Study of Hidden-Terminal Effect and Multimedia Support
IC3N '98 Proceedings of the International Conference on Computer Communications and Networks
Beyond the bits: cooperative packet recovery using physical layer information
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Zigzag decoding: combating hidden terminals in wireless networks
Proceedings of the ACM SIGCOMM 2008 conference on Data communication
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Business and entertainment increasingly depend on WLANs, as they provide flexibility of locations and low maintenance efforts. However in the presence of hidden terminals sender-receiver pairs experience severe packet loss due to collisions. ZigZag decoding has been proposed as an effective technique for recovering collided packets, but it may cause error propagation. In this paper, we propose an iterative ZigZag decoding algorithm to mitigate error propagation and further improve the system performance in the presence of collisions. Simulation results show that the proposed iterative ZigZag decoding can effectively overcome error propagation and considerably improve the system performance.