Title:
SYSTEM AND METHOD TO IMPROVE THE OVERALL PERFORMANCE OF A WIRELESS COMMUNICATION NETWORK
Document Type and Number:
WIPO Patent Application WO2004109472
Kind Code:
A3
Abstract:
A system and method for a media access control (MAC) scheduling algorithm having a distributed, self-coordinating approach to provide use fairness and service differentiation in an ad hoc network (100) by using control RTS/CTS messages carrying node status information. A local scheduling algorithm uses the overheard RTS/CTS information with attributes specifying nodes' (102, 106, 107) status to maximize the awareness of the neighborhood status for a multi-channel system where data and ACK messages are transmitted through different data channels. If the system uses a single channel, the corresponding information may be carried by using DATA or ACK messages. The algorithm measures the offered load, carried load, and backlogged load in the neighborhood to adjust the channel access timer to provide use fairness nmong different nodes, different links, and different streams.
Inventors:
JOSHI AVINASH (US)
Application Number:
PCT/US2004/018123
Publication Date:
February 10, 2005
Filing Date:
June 07, 2004
Export Citation:
Assignee:
MESHNETWORKS INC (US)
JOSHI AVINASH (US)
JOSHI AVINASH (US)
International Classes:
H04L12/56; H04W40/02; H04W40/24; H04W40/26; H04W48/08; H04W84/18; H04W88/04; H04W88/08; H04W92/18; (IPC1-7): H04J3/16; H04L12/28; H04L12/413
Foreign References:
| US6404756B1 | 2002-06-11 | |||
| US20030067892A1 | 2003-04-10 | |||
| US20030012167A1 | 2003-01-16 | |||
| US20020172186A1 | 2002-11-21 | |||
| US6556582B1 | 2003-04-29 | |||
| US6363062B1 | 2002-03-26 | |||
| US5844905A | 1998-12-01 | |||
| US20040100929A1 | 2004-05-27 | |||
| US20040057409A1 | 2004-03-25 | |||
| US6611521B1 | 2003-08-26 |
Other References:
See also references of EP 1632044A4
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