A two-level carrier sensing mechanism for overlapping BSS problem in WLAN

Author

Fang, Yue ; Gu, Daqing ; McDonald, A. Bruce ; Zhang, Jinyun

Author_Institution

Dept. of ECE, Northeastern Univ., Boston, MA

fYear

2005

fDate

18-18 Sept. 2005

Lastpage

6

Abstract

Basic service set (BSS) is the fundamental building block of an IEEE 802.11 wireless local area network (WLAN). The overlapping BSS problem refers to situations that two or more systems, unrelated to each other, are in close enough proximity to hear each other physically. Overlapping BSS problem may degrade the network performance severely. In this paper, a two-level carrier sensing mechanism is proposed to solve the overlapping BSS problem. In the proposed solution, a new network allocation vector is introduced to solve the overlapping BSS problem with minimal hardware requirement. Moreover, the proposed mechanism introduces very little complexity - when there is no overlapping BSS problem exists, the proposed mechanism works the same as legacy 802.11 MAC mechanism

Keywords

wireless LAN; IEEE 802.11; WLAN; basic service set; network allocation vector; two-level carrier sensing mechanism; wireless local area network; Access protocols; Cellular networks; Degradation; Hardware; Laboratories; Media Access Protocol; Scheduling; Standards publication; Throughput; Wireless LAN; WLAN; network allocation vector (NAV); overlapping BSS problem; two-level carrier sensing;

fLanguage

English

Publisher

ieee

Conference_Titel

Local and Metropolitan Area Networks, 2005. LANMAN 2005. The 14th IEEE Workshop on

Conference_Location

Crete

Print_ISBN

0-7803-9565-4

Type

conf

DOI

10.1109/LANMAN.2005.1541538

Filename

1541538