Publications [#336755] of Vahid Tarokh

Papers Published

1. Koike-Akino, T; Larsson, P; Popovski, P; Tarokh, V, Non-linear network coding in two-way relaying discrete channels, 2009 International Conference on Wireless Communications and Signal Processing, Wcsp 2009 (December, 2009), IEEE, ISBN 9781424456680 [doi]
   (last updated on 2023/06/01)

   Abstract:
   In this paper, we present optimal network coding which can maximize achievable rate region in two-way relaying discrete channels, where there are two communicating nodes and one relaying node. We focus on a low-complexity relaying protocol termed the detect-and-forward (DtF) scheme, in which the relaying node does not require channel decoding but detection. We first analyze the achievable rate region of any digital network coding function including non-linear types. We then search for the optimal network code in favor of maximizing two kinds of performance measures: the sum rate and the product rate. For high SNR regimes, linear network codes like the exclusive-or (XOR) function can offer the maximum-achievable rate region. Whereas, for low SNR regimes, it is verified that non-linear network codes like the negate-or (NOR) function can outperform linear codes due to the effect of error occurrence at the intermediate relaying node. © 2009 IEEE.