Publications [#336778] of Vahid Tarokh

Papers Published

1. Koike-Akino, T; Popovski, P; Tarokh, V, Denoising maps and constellations for wireless network coding in two-way relaying systems, Globecom Ieee Global Telecommunications Conference (December, 2008), pp. 3790-3794, ISBN 9781424423248 [doi]
   (last updated on 2023/06/01)

   Abstract:
   We investigate on the design of modulation schemes suited for two-way wireless relaying systems that apply network coding at the physical layer. We consider network coding based on denoise-and-forward (DNF), which consists of two stages: multiple access (MA) stage and broadcast (BC) stage. For the case of QPSK constellation in the MA stage, we introduce the modulation-related problems in DNF. We propose two approaches to solve those issues. One uses only QPSK constellations at the BC stage. The other allows the use of unconventional 5-ary modulations, optimized according to the channel condition. The performance evaluation shows that a significant improvement in end-to-end throughput can be achieved, in particular for Nakagami-Rice fading channels. © 2008 IEEE.