naa a22 4500 510797040 CHVBK 20180411083340.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1007/s11277-013-1219-4 doi (NATIONALLICENCE)springer-10.1007/s11277-013-1219-4 Chen Lei Department of Public Security Intelligence, China Criminal Police University, 110854, Shenyang, China aut Resource Allocation with Limited Feedback and Joint Coding Scheme for Wireless Multi-antenna Multicast System [Elektronische Daten] [Lei Chen] In conventional multicast scheme (CMS), the total throughput of multicast group is constrained by the user with the worst channel quality. In order to overcome this problem of limited throughput, we introduce a resource allocation algorithm by exploiting layered coding combined with erasure correction coding for multicast services in the downlink of OFDMA-based multi-antenna system. To reduce the feedback overhead of uplink, we design a novel transmission scheme with limited feedback. Then, we formulate the joint subcarrier and power allocation problem for the data of base layer and enhancement layers, which is shown to be NP hard. Hence, in order to reduce the computational complexity, we propose a three-phase suboptimal algorithm. The algorithm is designed to maximize the system throughput while at the same time guarantee the quality of services (QoS) requirements of all multicast groups. It is composed of precoding scheme, proportional fairness subcarrier allocation algorithm and modified water-filling power allocation algorithm with QoS guarantees (MWF-Q). To further decrease the complexity of MWF-Q, a power allocation algorithm with increased fixed power allocation algorithm with QoS guarantees is introduced. Simulation results show that the proposed algorithms based on limited feedback scheme significantly outperform CMS and any other existing algorithm with full feedback. Moreover, the proposed scheme can efficiently reduce 50% of the full feedback overhead. Springer Science+Business Media New York, 2013 Multicast nationallicence Precoding nationallicence FGS video coding nationallicence UEP RS coding nationallicence Limited feedback nationallicence Wireless Personal Communications Springer US; http://www.springer-ny.com 73/3(2013-12-01), 819-838 0929-6212 73:3<819 2013 73 11277 https://doi.org/10.1007/s11277-013-1219-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-013-1219-4 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Chen Lei Department of Public Security Intelligence, China Criminal Police University, 110854, Shenyang, China aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 73/3(2013-12-01), 819-838 0929-6212 73:3<819 2013 73 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer