Telecommunications Science ›› 2010, Vol. 26 ›› Issue (10): 71-79.doi: 10.3969/j.issn.1000-0801.2010.10.019

• research and development • Previous Articles     Next Articles

An Asymmetrically Bidirectional Base-k Chord

Huayun Yan1,2,Jihong Guan2,Weihua Zhan2,Yunliang Jiang1   

  1. 1 School of Information&Engineering,Huzhou Teachers College,Huzhou 313000,China
    2 College of Electronics&Information Engineering,Tongji University,Shanghai 201804,China
  • Online:2010-10-15 Published:2010-10-15

Abstract:

To improve the routing efficiency of Base-k Chord,this paper proposes a new finger table for Base-k Chord by using an asymmetrically bidirectional structure. Concretely,keeping the odd items in the finger table unchanged,while re-directing the even items,which does not change the size of the finger table. A routing algorithm for this new Chord structure is developed, which can always chooses the next finger for routing that is nearest to the destination node. For performance comparison,the 2-Chord is extended to symmetrically bidirectional Chord. Experimental results show that the routing efficiency of symmetrically bidirectional Chord archives no much improvement in performance,while the proposed asymmetrically bidirectional Base-k Chord outperforms its counterparts.

Key words: peer-to-peer, Chord,finger table, routing algorithm

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