Link adaptation framework for video transmission over WiMAX using MDP over cross-layer approach

被引：0
|
作者：
Bin Salem, Ali Abdulqader [1 ]
Chong, Yung-Wey [1 ]
Shannon, Ali [1 ]
Wan, Tat-Chee [1 ]
机构：
[1] Univ Sains Malaysia, Natl Adv Ctr IPv6, Usm 11800, Penang, Malaysia
来源：
2013 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATION, NETWORKS AND SATELLITE (COMNETSAT) | 2013年
关键词：
Link adaptation; Signal-to-noice ratio; Cross-layer approach; Markov decision process;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Modulation and Coding Schemes (MCSs) is one of the parameters that can be adapted according to the channel condition. The IEEE 802.16 system specifies several MCSs, such as QPSK, 16-QAM, 64-QAM in case of modulation and 1/2, 2/3, 3/4, 5/6 in case of coding. However, the specification does not provide a policy to select MCS for various link conditions. In this paper, we study the problem of Link adaptation (LA) for adapting modulation level of a point-to-point system according to channel condition, SNR of receiving data, and FER in order to maximize system throughput and minimize FER. The LA model in this proposed work is based on downward cross-layer design approach between MAC and physical layers and adopting Markov Decision Process (MDP) over cross-layer design approach to optimize the adapting modulation level.
引用
收藏
页码：89 / 94
页数：6
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