{"title":"基于离散随机算法的协同MIMO系统联合迭代功率分配与中继选择","authors":"P. Clarke, R. D. Lamare","doi":"10.1109/ISWCS.2011.6125397","DOIUrl":null,"url":null,"abstract":"In this work, we propose a set of joint power allocation and relay selection (RS) algorithms for multi-relay cooperative multiple-input-multiple-output (MIMO) systems. Adaptive discrete stochastic algorithms (DSA) are used to generate a subset of relays over which stochastic gradient continuous power allocation operates. Optimum minimum mean-square error (MMSE) and adaptive reception are considered in a decode-and-forward (DF) network with a non-negligible direct path. Bit-error-rate (BER) comparisons are given against systems which lack joint RS and power allocation, and the proposed schemes are shown to achieve an increased rate of convergence, improved steady-state performance and involve the manipulation of smaller dimensionality matrices.","PeriodicalId":414065,"journal":{"name":"2011 8th International Symposium on Wireless Communication Systems","volume":"53 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"11","resultStr":"{\"title\":\"Joint iterative power allocation and relay selection for cooperative MIMO systems using discrete stochastic algorithms\",\"authors\":\"P. Clarke, R. D. Lamare\",\"doi\":\"10.1109/ISWCS.2011.6125397\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this work, we propose a set of joint power allocation and relay selection (RS) algorithms for multi-relay cooperative multiple-input-multiple-output (MIMO) systems. Adaptive discrete stochastic algorithms (DSA) are used to generate a subset of relays over which stochastic gradient continuous power allocation operates. Optimum minimum mean-square error (MMSE) and adaptive reception are considered in a decode-and-forward (DF) network with a non-negligible direct path. Bit-error-rate (BER) comparisons are given against systems which lack joint RS and power allocation, and the proposed schemes are shown to achieve an increased rate of convergence, improved steady-state performance and involve the manipulation of smaller dimensionality matrices.\",\"PeriodicalId\":414065,\"journal\":{\"name\":\"2011 8th International Symposium on Wireless Communication Systems\",\"volume\":\"53 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2011-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"11\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2011 8th International Symposium on Wireless Communication Systems\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISWCS.2011.6125397\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 8th International Symposium on Wireless Communication Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISWCS.2011.6125397","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Joint iterative power allocation and relay selection for cooperative MIMO systems using discrete stochastic algorithms
In this work, we propose a set of joint power allocation and relay selection (RS) algorithms for multi-relay cooperative multiple-input-multiple-output (MIMO) systems. Adaptive discrete stochastic algorithms (DSA) are used to generate a subset of relays over which stochastic gradient continuous power allocation operates. Optimum minimum mean-square error (MMSE) and adaptive reception are considered in a decode-and-forward (DF) network with a non-negligible direct path. Bit-error-rate (BER) comparisons are given against systems which lack joint RS and power allocation, and the proposed schemes are shown to achieve an increased rate of convergence, improved steady-state performance and involve the manipulation of smaller dimensionality matrices.