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Future Internet 2015, 7(3), 307-328; doi:10.3390/fi7030307

A Low-Jitter Wireless Transmission Based on Buffer Management in Coding-Aware Routing

1
School of Communication Engineering, Xidian University, Xi'an 710071, Shanxi, China
2
Department of Information and Communication Systems, Hohai University, Changzhou 213022, Jiangsu, China
*
Author to whom correspondence should be addressed.
Academic Editor: Andrew Hudson-Smith
Received: 12 June 2015 / Revised: 10 August 2015 / Accepted: 26 August 2015 / Published: 31 August 2015
View Full-Text   |   Download PDF [7479 KB, uploaded 31 August 2015]   |  

Abstract

It is significant to reduce packet jitter for real-time applications in a wireless network. Existing coding-aware routing algorithms use the opportunistic network coding (ONC) scheme in a packet coding algorithm. The ONC scheme never delays packets to wait for the arrival of a future coding opportunity. The loss of some potential coding opportunities may degrade the contribution of network coding to jitter performance. In addition, most of the existing coding-aware routing algorithms assume that all flows participating in the network have equal rate. This is unrealistic, since multi-rate environments often appear. To overcome the above problem and expand coding-aware routing to multi-rate scenarios, from the view of data transmission, we present a low-jitter wireless transmission algorithm based on buffer management (BLJCAR), which decides packets in coding node according to the queue-length based threshold policy instead of the regular ONC policy as used in existing coding-aware routing algorithms. BLJCAR is a unified framework to merge the single rate case and multiple rate case. Simulations results show that the BLJCAR algorithm embedded in coding-aware routing outperforms the traditional ONC policy in terms of jitter, packet delivery delay, packet loss ratio and network throughput in network congestion in any traffic rates. View Full-Text
Keywords: coding aware routing; delay jitter; buffer management; unified framework; multiple rates coding aware routing; delay jitter; buffer management; unified framework; multiple rates
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Lu, C.; Wan, L. A Low-Jitter Wireless Transmission Based on Buffer Management in Coding-Aware Routing. Future Internet 2015, 7, 307-328.

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