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中文摘要：
针对非正交转发协议中联合似然检测时间复杂度较高、检测性能较差的问题，提出一种新的检测方法．该方法以最大比合并方式使强信号帧获得分集增益并先行检测，然后以检测值消除对弱信号帧的干扰，最后检测消除干扰后的弱信号帧．理论分析和仿真结果表明，相对联合似然检测，所提出的检测方法不仅能有效降低检测时间复杂度，而且检测性能也明显改善；该方法的误比特性能理论与仿真值在高信噪比时趋于一致．
英文摘要：
The joint maximum likelihood detection （JMLD） in application to non-orthogonal forwarding protocol has higher detection time complexity and poorer detection performance. A new detection method is proposed. The diversity gain of strong signal frame is obtained by maximal ratio combining and detected in advance. The detection result is thereafter used to eliminate interference to weak signal frame. At last, the weak signal frame is detected. Analysis and simulation show that, comparing with JMLD, the pro- posed method reduces the detection time complexity effectively and improves the bit error performance. The bit error rate of analysis and simulation value tends to be consistent at high signal-to-noise ratio.
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