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Cross-layer designed cooperative Medium Access Control (MAC) protocols for 802.11 wireless networks have been recently shown to achieve a better performance than the Distributed Coordination Function (DCF). This paper analyses the effects of different channel coding techniques on the performance of cooperative MAC protocols. Different forwarding schemes, inspired by Hybrid Automatic Repeat and reQuest...
This paper evaluates the major MAC enhancement of IEEE 802.11n to realize high throughput, i.e. frame aggregation. In contrast to existing studies of this enhancement, we analyze the efficiency instead of the mere performance. The results show significant efficiency improvement by frame aggregation. Furthermore, the efficiency analysis leads to important conclusions for system configuration and adaptation...
Cooperative diversity is a promising and practical technique for realizing spatial diversity through a virtual antenna array formed by multiple distributed antennas of different nodes. In this paper, we propose and evaluate a novel cooperative cross-layer medium access control (CC-MAC) protocol, which combines space-time coding and adaptive modulation at the physical layer and employs truncated automatic...
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