Wireless LAN data rate adaptation

Multiplex communications – Data flow congestion prevention or control – Control of data admission to the network

Reexamination Certificate

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Reexamination Certificate

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07463583

ABSTRACT:
A WLAN communication system and algorithm that adaptively changes the data transmission rate of a communication channel based on changing channel conditions. The WLAN communication system or algorithm has two modes being a searching mode and a transmission mode. Furthermore, the WLAN communication system or algorithm incorporates an additive increase, multiplicative decrease (AIMD) function into the rate adaptation algorithm.

REFERENCES:
patent: 6826147 (2004-11-01), Nandy et al.
patent: 7292533 (2007-11-01), Park
Ad Kamerman and Leo Monteban, “WaveLAN-II: A High-Performance Wireless LAN for the Unlicensed Band,”Bell Labs Technical Journal, pp. 118-133, Summer 1997.
Chevillat, et al., “A Dynamic Link Adaptation Algorithm for IEEE 802.11a Wireless LANs”,IEEE International Conference on Communications(ICC), pp. 1141-1146, 2003.
B. Sadeghi, et al., “Opportunistic Media Access for Multirate Ad Hoc Networks,”ACM MobiCom 2002, Sep. 2002.
Javier del Prado, et al., “Link Adaptation Strategy for IEEE 802.11 WLAN via Received Signal Strength Measurement”,IEEE International Conference on Communications, May 2003.
A. J. van der Vegt, “Auto Rate Fallback Algorithm for the IEEE 802.11a Standard,” technical report, Utrecht University, 2003.
Holland, et al., “A Rate-Adaptive MAC Protocol for Multi-Hop Wireless Networks,”ACM MobiCom '01, pp. 236-251, 2001.
Qiao, et al., “Goodput Analysis and Link Adaptation for IEEE 802.11a Wireless LANs,”On Mobile Computing, vol. 1, No. 4, pp. 278-292, Oct.-Dec. 2002.

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