An efficient network coding scheme with symbol combining:performance evaluation, optimization, and comparisons

Chiti, Francesco and Fantacci, Romano and Tassi, Andrea (2013) An efficient network coding scheme with symbol combining:performance evaluation, optimization, and comparisons. IEEE Transactions on Vehicular Technology, 62 (3). pp. 1267-1275. ISSN 0018-9545

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Abstract

In this paper, we investigate the performance advantages achieved by using a symbol combining (SC) approach in a random linear network coding (RLNC) scheme for broadcast communications over lossy channels. In particular, the focus is on a modified RLNC scheme that makes use of the repeated transmissions of each data symbol belonging to the same coded packet to implement the SC approach at the receiving ends. By considering the mean number of transmissions and energy consumption for each coded packet as objective metrics, two optimization procedures are proposed and compared in this paper. We consider a broadcast network model where an access point (AP) has to broadcast coded packets to a set of receiving nodes. In addition, the analysis presented in this paper is extended to broadcast communications in butterfly topology networks. For all the considered scenarios, the better behavior of the SC RLNC scheme results is clearly evident in comparison with the basic RLNC, without requiring additional implementation complexity at each receiving end.

Item Type:
Journal Article
Journal or Publication Title:
IEEE Transactions on Vehicular Technology
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2200/2202
Subjects:
ID Code:
72588
Deposited By:
Deposited On:
27 Jan 2015 08:22
Refereed?:
Yes
Published?:
Published
Last Modified:
22 Apr 2020 03:23