標題: Optimal modulation and coding scheme allocation of scalable video multicast over IEEE 802.16e networks
作者: Tsai, Chia-Tai
Jan, Rong-Hong
Chen, Chien
資訊工程學系
Department of Computer Science
關鍵字: Adaptive modulation and coding;Branch and bound algorithm;IEEE 802.16e;Resource allocation;Scalable video coding
公開日期: 2011
摘要: With the rapid development of wireless communication technology and the rapid increase in demand for network bandwidth, IEEE 802.16e is an emerging network technique that has been deployed in many metropolises. In addition to the features of high data rate and large coverage, it also enables scalable video multicasting, which is a potentially promising application, over an IEEE 802.16e network. How to optimally assign the modulation and coding scheme (MCS) of the scalable video stream for the mobile subscriber stations to improve spectral efficiency and maximize utility is a crucial task. We formulate this MCS assignment problem as an optimization problem, called the total utility maximization problem (TUMP). This article transforms the TUMP into a precedence constraint knapsack problem, which is a NP-complete problem. Then, a branch and bound method, which is based on two dominance rules and a lower bound, is presented to solve the TUMP. The simulation results show that the proposed branch and bound method can find the optimal solution efficiently.
URI: http://hdl.handle.net/11536/25915
http://dx.doi.org/10.1186/1687-1499-2011-33
ISSN: 1687-1472
DOI: 10.1186/1687-1499-2011-33
期刊: EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING
顯示於類別:期刊論文


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