关于AWGN信道上二元线性码的参数化Gallager第一界
On Parameterized Gallager's First Bounds for Binary Linear Codes over AWGN Channels
摘要:
在本文中,嵌套Gallager区域与一个单一的参数,利用Gallager的第一边界技术(GFBT)。我们提出了一个必要和充分条件的最佳参数。我们还提出了一个充分条件(与一个简单的几何解释)下,最佳参数不依赖于信号噪声比(SNR)。在这个框架下,我们重新审视了三个已有的上界,包括Berlekamp的切向上界(TB),Herzberg和Poltyrev的球面上界(SB),以及Poltyrev的切向球面上界(TSB).本文还揭示了Herzberg和Poltyrev的SB等价于Kasami等人的SB,这在文献中很少被引用。
英文摘要:
In this paper, nested Gallager regions with a single parameter is introduced to exploit Gallager's first bounding technique (GFBT). We present a necessary and sufficient condition on the optimal parameter. We also present a sufficient condition (with a simple geometrical explanation) under which the optimal parameter does not depend on the signal-to-noise ratio (SNR). With this general framework, three existing upper bounds are revisited, including the tangential bound (TB) of Berlekamp, the sphere bound (SB) of Herzberg and Poltyrev, and the tangential-sphere bound (TSB) of Poltyrev. This paper also reveals that the SB of Herzberg and Poltyrev is equivalent to the SB of Kasami et al., which was rarely cited in literature.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。