Cross-layer rate adaptation mechanism for WLAN

Details Cross-layer rate adaptation mechanism for WLAN Cross-layer rate adaptation mechanism for WLAN

2005-10-14

2008-09-09

Nguyen, Lee (Department: 2618)

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

C370S338000

Reexamination Certificate

active

07423970

ABSTRACT:
A cross-layer rate adaptation mechanism for wireless local area network (WLAN) can obtain the channel state by calculating the Eb/N0ratio of ACK frame transmitted from the receiver side. The mechanism determines the transmission rate of the next frame by referring to a predefined reduced mode table. When receiving an ACK frame fails, the mechanism can automatically lower the transmitting rate of the next transmission. Therefore, the method can reduce the damage to the system when ACK frame failure happens.

REFERENCES:
patent: 2002/0168993 (2002-11-01), Choi et al.
patent: 2003/0022686 (2003-01-01), Soomro et al.
patent: 2003/0133427 (2003-07-01), Cimini et al.
patent: 2004/0017790 (2004-01-01), del Prado et al.
patent: 2004/0086058 (2004-05-01), Eckhardt et al.
patent: 2006/0187885 (2006-08-01), Roy et al.
patent: 2006/0198305 (2006-09-01), Hamdi
patent: 1543081 (2004-11-01), None
patent: WO 03/075503 (2003-09-01), None
Ad Kamerman, et al., “WaveLAN®-II: A High-Performance Wireless LAN for the Unlicensed Band.” Bells Labs Technical Journal, Jul. 1997.
Julian Cheng, et al., “Maximum-Likelihood Based Estimation of the NakagamimParameter.” IEEE Communication Letters, vol. 5, No. 3, Mar. 2001.
Julian Cheng, et al., “Generalized Moment Estimators for the Nakagami Fading Parameter.” IEEE Communications Letters, vol. 6, No. 4, Apr. 2002.
Young-Chai Ko, et al., “Estimation of Nakagami-mFading Channel Parameters With Application to Optimized Transmitter Diversity Systems.” IEEE Transactions on Wireless Communications, vol. 2, No. 2, Mar. 2003.
Daji Qiao, et al. “Miser: An Optimal Low-Energy Transmission Strategy for IEEE 802.11 a/h.” Sep. 2003.
Wei-Cheng Liu, et al., “Physical Layer Effects on the MAC Goodput Performance for the Rate Adaptive IEEE 802.11 a/g WLAN.” 2004 IEEE, Apr. 2003.
Office Action dated Sep. 7, 2007 for corresponding Chinese Application No. 2005100633611.

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