华中科技大学学报（自然科学版）2016，Vol.44Issue(5)：64-70,7.DOI:10.13245/j.hust.160512
矿井巷道协作 MC-CD MA 功率控制与扩容
Power control and capacity expansion of cooperation MC-CDMA in mine tunnel
摘要
Abstract
A subcarrier power control algorithm was proposed for the uplink time‐frequency coded co‐operation multiple carrier‐code division multiple access (MC‐CDMA) wireless transmission to ensure that power could be efficiently utilized on subcarriers with good channel conditions of every spread branch .In the algorithm ,the transmitter wiped off a fixed portion of deep fading subcarriers accord‐ing to the channel gains of MC‐CDMA subcarriers feedback from the receiver .A capacity expansion algorithm was proposed based on iterative decoding to break through the restriction on number of us‐ers caused by the length of spreading sequence in time‐frequency coded cooperation MC‐CDMA sys‐tem .Simulation results show that the bit error rate performance of users are improved significantly with the proposed subcarrier power control algorithm and the capacity expansion is achieved effectively with the proposed capacity expansion algorithm for time‐frequency coded cooperation MC‐CDMA sys‐tem under mine tunnels .关键词
编码协作/多载波码分多址/子载波功率控制/用户容量/矿井巷道Key words
coded cooperation/multiple carrier-code division multiple access/subcarrier power con-trol/user capacity/mine tunnels分类
矿业与冶金引用本文复制引用
杨维,张琳园,许晶晶,邵小桃..矿井巷道协作 MC-CD MA 功率控制与扩容[J].华中科技大学学报（自然科学版）,2016,44(5):64-70,7.基金项目
国家“十二五”科技支撑计划资助项目（2013BAK06B03）；国家自然科学基金资助项目（51274018）． （）
