Enhanced Link-Status Detection for High Speed Link Aggregation in Cognitive Radio Networks
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Multicast Link Adaptation in Reliable Transmission Over Geostationary Satellite Networks
Wireless Personal Communications: An International Journal
Improving user throughput with Interleaved-HARQ in OFDM systems
FGIT'12 Proceedings of the 4th international conference on Future Generation Information Technology
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This paper deals with the performance evaluation of an efficient medium access control (MAC) technique based on the use of an adaptive modulation and coding (AMC) scheme that significantly improves the downstream data rate and guarantees specific quality of service (QoS) requirements in wireless communication systems. Basically, the access scheme considered in this paper relies on physical channel monitoring and state mapping into a variable rate packet format. In particular, a suitable analytical model is proposed herein in order to predict the system performance, i.e., the average packet queuing delay in the case of a non-stationary transmission channel. Comparisons between analytical predictions and simulation results are provided to validate our model and highlight the improvement of the AMC technique with respect to a static rate allocation scheme, especially in the case of heavy tailed traffic conditions.