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Seek and decode: Random multiple access with multiuser detection and physical-layer network coding

机译:搜寻和解码:具有多用户检测和物理层网络编码的随机多路访问

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摘要

We present a novel random multiple access scheme that combines joint multiuser detection (MUD) with physicallayer network coding (PLNC) over extended Galois fields (EGF). We derive an analytical bound on the throughput at the system level and present simulation results for the decoding at the physical level in both fast fading and block fading channels. We adopt a cross layer approach in which a non-binary joint multiuser decoder is used in combination with PLNC at slot level, while the use of EGF aims at increasing the system diversity at frame level. The results we present are encouraging and suggest that the combination of these two interference management techniques can significantly enhance the performance of random multiple access systems.
机译:我们提出了一种新颖的随机多址访问方案,该方案结合了联合多用户检测(MUD)与扩展Galois字段(EGF)上的物理层网络编码(PLNC)。我们推导了系统级吞吐量的解析边界,并给出了在快速衰落和块衰落信道中物理级解码的仿真结果。我们采用一种跨层方法,其中在时隙级别将非二进制联合多用户解码器与PLNC结合使用,而EGF的使用旨在增加帧级别的系统多样性。我们目前的结果令人鼓舞,并建议这两种干扰管理技术的组合可以显着提高随机多址系统的性能。

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