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A time division multiple access (TDMA) scheduling protocol is proposed for solving the inter-cluster interference of medium access control (MAC) in cluster-based wireless sensor networks (WSN). Through each cluster-head snooping into the neighbor nodes' networking packets and creating the TDMA schedule based on these packets, the protocol can avoid inter-cluster interference. The protocol is implemented...
In IEEE 802.11 WLANs, the fundamental MAC mechanism - DCF, only supports best-effort service, and is unaware of QoS. IEEE 802.11e EDCA supports service differentiation by differentiating contention parameters. This may introduce the problem of selfish traffics with rational nodes. Hence, game-theoretic EDCA (G-EDCA) is proposed in this paper to solve the problem. Moreover, a simple and run-time estimation...
In this paper, an incompletely cooperative game- theoretic MAC protocol is presented to improve the performance of WLANs. Firstly, each node estimates the current game state upon running CSMA/CA. Secondly, each node changes its equilibrium strategy by tuning its local contention parameters based on the estimated game state. Finally, the game is repeated finitely to get the optimal performance. To...
In IEEE802.11-based wireless multi-hop Ad hoc networks nodes need to contend for the shared wireless channel, which could result in congestions and waste the limited wireless bandwidth resource. A novel adaptive backoff algorithm based on network congestion-NCBAB (Network-Congestion Based Adaptive Backoff) in media access control (MAC) layer is proposed. In this algorithm, the node adjusts its backoff...
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