Low complexity non-binary LDPC and modulation schemes communicating over MIMO channels
Low complexity non-binary LDPC and modulation schemes communicating over MIMO channels
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DOI：
10.1109/vetecf.2004.1400232
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发表时间：
2004-09
期刊：
影响因子：
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通讯作者：
F. Guo;L. Hanzo
中科院分区：
文献类型：
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作者：
F. Guo;L. Hanzo
在这一贡献中，珍珠的信念传播（BP）算法被调用用于构建信仰网络，该算法用于开发联合检测辅助传输多样性方案和在GF（Q）有限的有限领域构建的非二元LDPC解码器。进一步开发了一种令人兴奋的逐个检测方案，以创建纯粹的基于符号的LDPC/传输多样性解码器。使用两个发射器和两个接收器通过不相关的雷利褪色通道进行通信时，针对原始的逐比特检测方案的性能进行了基准测试。还比较了相关的检测复杂性。
In this contribution, Pearl's belief propagation (BP) algorithm is invoked for constructing a belief network, which is employed for developing a joint detection aided transmit diversity scheme and a non-binary LDPC decoder constructed over a finite field of GF(q). An exciting bit-by-bit detection scheme is further developed for creating the joint purely symbol-based LDPC/transmit diversity decoder. The performance of the proposed symbol-based system is benchmarked against the original bit-by-bit detection scheme, when communicating over an uncorrelated Rayleigh fading channel using two transmitters and two receivers. The associated detection complexities are also compared.