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Title:
COMMUNICATION SYSTEM IN AD HOC NETWORK
Document Type and Number:
Japanese Patent JP2005086525
Kind Code:
A
Abstract:

To provide a communication system for appropriately controlling TCP communication in accordance with link disconnection or new link connection in an ad hoc network for using a table drive type routing protocol to perform routing.

When a terminal 1 starts TCP communication, a transmission destination address and a transmission source port number are registered in a socket information management table, when a terminal 3 detects link disconnection, Metric of path information of a routing table is updated to BIG and an Update packet including the updated path information is broadcasted, and when a terminal 2 and the terminal 1 receive the Update packet, the Metric is updated to BIG. When the Metric becomes the BIG, the terminal 1 acquires the transmission destination address of the path information, refers to the socket information management table and freezes TCP communication using a transmission source port number corresponding to the acquired transmission destination address.


Inventors:
CHO HEI
MAHDAD NOURI SHIRAZI
TANAKA SHINSUKE
Application Number:
JP2003000317073
Publication Date:
March 31, 2005
Filing Date:
September 09, 2003
Export Citation:
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Assignee:
ATR ADVANCED TELECOMM RES INST
NAT INST INF & COMM TECH
International Classes:
H04W16/26; H04B7/155; H04B7/26; H04L12/28; H04L12/701; H04L12/751; H04W40/28; H04W40/34; H04W74/08; H04W84/12; H04W84/18; (IPC1-7): H04L12/56; H04B7/155; H04B7/26; H04L12/28
Attorney, Agent or Firm:
深見 久郎
森田 俊雄
仲村 義平
堀井 豊
野田 久登
酒井 將行