Research Article
XBC: XOR-based Buffer Coding for Reliable Transmissions over Wireless Networks
@INPROCEEDINGS{10.1109/BROADNETS.2007.4550409, author={Zizhan Zheng and Prasun Sinha}, title={XBC: XOR-based Buffer Coding for Reliable Transmissions over Wireless Networks}, proceedings={4th International IEEE Conference on Broadband Communications, Networks, Systems}, proceedings_a={BROADNETS}, year={2008}, month={6}, keywords={Base stations Buffer storage Computer network reliability Computer science Decoding Protocols Radiofrequency identification Throughput Wireless LAN Wireless networks}, doi={10.1109/BROADNETS.2007.4550409} }- Zizhan Zheng
Prasun Sinha
Year: 2008
XBC: XOR-based Buffer Coding for Reliable Transmissions over Wireless Networks
BROADNETS
IEEE
DOI: 10.1109/BROADNETS.2007.4550409
Abstract
In-network caching is a useful technique for reducing latency and retransmission overhead of lost packets for reliable data delivery in wireless networks. However, in-network caching is challenging to implement in memory constrained devices such as RFIDs and sensors, and also in Wireless LAN (WLAN) gateways for large-scale deployments. In this paper we propose a novel technique for management of in-network caches using XOR coding for optimizing the use of limited buffer space in presence of random and burst packet losses. We identify two critical parameters, coding degree and coding distance for the coding scheme. As a case-study we implement our approach over Snoop and evaluate its performance for a WLAN. Using simulations in ns-2, we observe that when the size of the retransmission buffer on the gateway is less than 16 packets per TCP flow, the throughput can be enhanced by up to 30% for random losses and up to 20% for burst losses.