AG Kommunikationstheorie

Thema:

Cooperative Protocols for Wireless Random Access Networks

Abstract:

Recent works have shown that in wireless networks, cooperation between nodes can improve the network performance. However, in most investigations so far perfect time scheduling is assumed. To implement this in practical networks is very expensive or impossible. We therefore investigate the effect of cooperation in a random access network. Since cooperation needs more involved protocols than a direct link strategy, it may result in a throughput degeneration. It is therefore not clear in advance if we can benefit from cooperation in a random access network in terms of the overall throughput. In a first step, we assess the problem by replacing perfect time scheduling in the classical relay channel by a random access protocol.



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