購物車(0)
Cooperative Beamforming for Multi-Relay Networks with Limited Feedback
關鍵詞：cooperative beamforming relay selection effective
摘要：In this paper, we consider a multi-relay cooperative communication network that consists of a source node transmitting to its destination with the help of multiple decode-and- forward (DF) relays. Specifically, the DF relays that succeed in decoding the source signal are allowed to re-transmit their decoded results simultaneously to the destination in a cooperative beamforming manner. In order to carry out the cooperative beamforming, the destination needs to send the quantized channel state information (CSI) to the relays through a limited feedback channel in the face of channel quantization errors (CQE). We propose a CQE oriented multi-relay beamforming (MRB) scheme, denoted CQE-MRB for short, for the sake of improving the throughput of relay-destination transmissions. An effective throughput defined as the difference between the transmission rate and the feedback rate is used to measure an outage probability of the source-destination transmission. Simulation results demonstrate that the outage performance of proposed CQEMRB scheme is improved substantially with an increasing number of relays. Moreover, it is shown that the number of channel quantization bits can be further optimized to minimize the outage probability of proposed CQE-MRB scheme.
中國通信雜志要求:
{1}采用三線表，必要時可加輔線。表號和表題置于表的上方（小五號宋體字），表題中英文對照。表中量和單位的標示形式同圖（六號宋體字）。
{2}文稿應具有創新性、科學性、實用性，論點明確，資料可靠，文字精煉，層次清楚，數據準確、規范。
{3}各層次標題都要簡短明確，同一層次的標題應盡可能“排比”，即詞（詞組）類型相同，意義相關，語氣一致。
{4}參考文獻在文內采用[1] [2] [3]……上標格式順序標識，按文中出現的先后順序編號，并在文后統一著錄文獻詳細信息。
{5}作者簡介（含本篇其他作者）包括：姓名、性別、民族（漢族可省略）、職稱、學位、研究方向。
注：因版權方要求，不能公開全文，如需全文，請咨詢雜志社
