Split Multi-Path Routing Protocol with Load Balancing Policy (SMR-LB) to Improve TCP Performance in Mobile Ad Hoc Networks

Takeshi MURAKAMI  Masaki BANDAI  Iwao SASASE  

IEICE TRANSACTIONS on Communications   Vol.E89-B    No.5    pp.1517-1525
Publication Date: 2006/05/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e89-b.5.1517
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Switching for Communications
ad hoc networks,  TCP,  load balancing policy,  multi-path routing,  

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In this paper, we propose Split Multi-path Routing protocol with Load Balancing policy (SMR-LB) to improve TCP performance in mobile ad hoc networks. In SMR-LB, each intermediate node records how many primary paths are attempted to construct as well as which source nodes attempt to construct the primary path. Each intermediate node decides which primary path should be constructed by using the primary path and the source node ID information. As a result, SMR-LB can balance the loads and so reduce the probability of congestion and avoid the continuous link breakage time between the specific source and destination pair. Computer simulation results show that SMR-LB can improve TCP performance compared with the conventional protocols.