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《Journal of Beijing University of Posts and Telecommunications》 2010-06
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Layered Relay Multicast Scheme within Cells of Cellular System and Analysis for Channel Capacity

WANG Cheng-jin,LI Yi,ZHANG Lin,JI Hong(Key Laboratory of Universal Wireless Communication (Beijing University of Posts and Telecommunications),Ministry of Education,Beijing 100876,China)  
Within cells of cellular system,the mobility of relay terminals causes the cooperative relay channels instability,brings frequent interruptions to multicast stream.To solve this problem,a layered relay multicast scheme with high-capacity and continuity of multicast service is proposed.Based on a layered abstract model and a non-fading wireless model for satisfying the scheme,the capacity of layered multiple relay channel is studied.Analysis and simulation show that the scheme guarantees the continuity of multicast service when compared with general non-layered relay networks,though it causes a slight loss on capacity.
【Fund】: 北京市自然科学基金项目(4102044);; 国家自然科学基金重点项目(60832009);; 国家科技重大专项项目(2011ZX03001-007-03);; 国家青年科学基金项目(61001115)
【CateGory Index】: TN929.53
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