Robust Cooperative Relaying in a Wireless LAN: Cross-Layer Design and Performance Analysis

Date Added: Oct 2009
Format: PDF

A key technology in cooperative communications is Distributed Space-Time Coding (DSTC) which achieves spatial diversity gain from multiple relays. A novel DSTC, called Randomized Distributed Space-Time Coding (R-DSTC), shows considerable advantages over a regular DSTC in terms of system complexity. This paper exploits the benefits of R-DSTC Physical (PHY) layer and develops a distributed and opportunistic Medium Access Control (MAC) layer protocol for R-DSTC deployment in an IEEE 802.11 Wireless Local Area Network (WLAN).