Title :
Fragment adaptive reduction: coping with various interferers in radio unlicensed bands
Author :
Tourrilhes, Jean
Author_Institution :
Hewlett-Packard Co., Palo Alto, CA, USA
Abstract :
This paper studies the impact of common interferers found in unlicensed bands on 802.11 and other CSMA systems. First, we describe those interferers and the MAC techniques used to combat them. Then, we present fragment adaptive reduction, a scheme to overcome the effect of non-CSMA repetitive interferers, and it´s implementation in the SWAP protocol. We also describe a simple model of domestic microwave oven interference. We finish by some exhaustive simulations of the impact of microwave oven and other interferers on 802.11, which illustrate the benefits of the fragment reduction scheme
Keywords :
IEEE standards; adaptive signal processing; carrier sense multiple access; interference suppression; ovens; protocols; radiofrequency interference; telecommunication standards; wireless LAN; CSMA; IEEE802.11 protocol; MAC; RFI; SWAP protocol; domestic microwave oven interference; fragment adaptive reduction; nonCSMA repetitive interferers; radio interferers; radio unlicensed bands; simulation; wireless LAN; Attenuation; Electromagnetic heating; Fading; Interference; Laboratories; Microwave ovens; Multiaccess communication; OFDM; Physical layer; Wireless LAN;
Conference_Titel :
Communications, 2001. ICC 2001. IEEE International Conference on
Conference_Location :
Helsinki
Print_ISBN :
0-7803-7097-1
DOI :
10.1109/ICC.2001.936310
