A Cooperative Diversity Scheme Based on Quadrature Signaling

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文件名称：A Cooperative Diversity Scheme Based on Quadrature Signaling
文件大小：344KB
文件格式：PDF
更新时间：2013-12-13 14:24:57
协作分集 方案 A bandwidth and energy efficient cooperative diversity scheme based on quadrature signaling is proposed. The quadrature signaling is achieved by transmitting in the in-phase and quadrature components of QPSK modulation. The diversity gain and the bit error rate of the proposed cooperative diversity scheme improve with the inter-user channel quality. It is shown that the proposed scheme can achieve a diversity order of two for high inter-user signal-to-noise ratios, if the cooperating users are located within a region that permits successful cooperation. The cooperative region corresponding to a specified bit error rate is defined and derived.