Title: Correlation-aware multipath selection to enhance path diversity in ubiquitous computing environment

Authors: Jingyu Wang; Jianxin Liao; Tonghong Li; Ping Zhang

Addresses: State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing, 100876, China ' State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing, 100876, China ' Department of Computer Science, Technical University of Madrid, Madrid, 28660, Spain ' Wireless Technology Innovation Institute, Beijing University of Posts and Telecommunications, Beijing 100876, China

Abstract: Different paths are likely to overlap each other and even share bottleneck, which can weaken the path diversity gained through Concurrent Multipath Transfer (CMT). Spurred by this observation, it is necessary to select a limited number of independent paths as much as possible, so we fall back on end-to-end probes to estimate path correlation. This paper focuses on a new topic of correlation-aware multipath selection, with formal and systematic problem definition, modeling and solution. Based on well-designed multipath delay probing, a Grouping-based Multipath Selection (GMS) mechanism is developed to avoid shared bottleneck between topologically joint paths.

Keywords: concurrent multipath transfer; multipath selection; path diversity; correlation awareness; ubiquitous computing; bottlenecks.

DOI: 10.1504/IJAHUC.2012.050438

International Journal of Ad Hoc and Ubiquitous Computing, 2012 Vol.11 No.4, pp.246 - 257

Received: 26 Apr 2011
Accepted: 14 Sep 2011

Published online: 22 Nov 2012 *

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