Directional carrier sense medium access for wireless nodes

Details Directional carrier sense medium access for wireless nodes Directional carrier sense medium access for wireless nodes

2008-01-22

2008-01-22

Pezzlo, John (Department: 2616)

Multiplex communications

Communication over free space

Plural usage of common antenna

C370S902000, C370S329000, C455S456400

Reexamination Certificate

active

07321580

ABSTRACT:
A method (508) and system (226) provide directional medium access control for wireless nodes (102) in a wireless network (100), each of the nodes (102) having a transceiver (228) and a plurality of antennas (232, 234, 236, 238, 240) in selective communication with the transceiver (228). Packets (202) are transmitted from a transmitting node (106) of the nodes (102) when a channel (104) is sensed as being free in a beam direction of a selected one of the antennas (232, 234, 236, 238, 240), and in accordance with a pre-determined transmission mode (304) for the data packet (202). The transmitting node (106) is periodically placed in a forced idle state, thereby being prevented from transmitting data packets (202), but being able to receive and respond to data packets (202) from other nodes (102).

REFERENCES:
patent: 5898733 (1999-04-01), Satyanarayana
patent: 7139262 (2006-11-01), Elliott
patent: 7177294 (2007-02-01), Chen et al.
“A technical Tutorial on the IEEE 802.11 Protocol” by Panlo Brenner, Jul. 18, 1996.
Ji-Ning Duan, LiJen Ko, and Babak Daneshrad, Versatile Beamforming ASIC Architecture for Broadband Fixed Wireless Access, Proceedings of the Custom Integrated Circuits Conference, IEEE, 1999, pp. 545-548.
Haitao Wu, Yong Peng, Keping Long, Shiduan Cheng, and Jian Ma, Performance of Reliable Transport Protocol over IEEE 802.11 Wireless LAN: Analysis and Enhancement, INFOCOM 2002, Twenty-First Annual Joint Conference of the IEEE Computer and Communications Societies Proceedings, IEEE, vol. 2, 2002, pp. 599-607.
Young-Bae Ko, Vinaychandra Shankarkumar, and Nitin H. Vaidya, Medium Access Control Protocols Using Directional Antennas in Ad Hoc Networks, Proc. Of IEEE Infocom, Mar. 2000, pp. 13-21.
Romit Roy Coudhury, Xue Yang, Ram Ramanathan and Nitin H. Vaidya, Using Directional Antennas for Medium Access Control in Ad Hoc Networks, Proc. Of ACM Mobicom, Sep. 2002, 12 Pages.
A. Nasipuri, S. Ye, J. You, and R. E. Hiromoto, A MAC Protocol for Mobile Ad Hoc Networks using Directional Antennas, Proc. Of IEEE WCNC, Sep. 2000, pp. 1214-1219.
Nader S. Fahmy, Terence D. Todd, and Vytas Kezys, Ad Hoc Networks with Smart Antennas Using IEEE 802.11-Based Protocols, Proc. Of IEEE ICC, Apr. 2002, pp. 3144-3148.

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