naa a22 4500 510794750 CHVBK 20180411083332.0 cr unu---uuuuu 180411e20130401xx s 000 0 eng 10.1007/s11277-012-0639-x doi (NATIONALLICENCE)springer-10.1007/s11277-012-0639-x A Cross-Layer Approach to Reduce Channel Access Delay Jitter in IEEE 802.11 WLANs [Elektronische Daten] [Sangheon Pack, Kihun Kim, Wonjung Kim, Taewon Song, Seongman Min] In this paper, we propose a consistent random backoff (CRB) scheme to reduce the channel access delay jitter in voice over wireless local area networks. In the CRB scheme, a contention window (CW) size at each backoff stage is determined by hashing the session identifier and the talk spurt index. Therefore, all packets in the same talk spurt of a session have the same CW sizes if they are transmitted at the same backoff stage. Since a modulo-division operation with the identical maximum CW value is applied, fairness with the legacy backoff scheme (i.e., binary exponential backoff) is also provided. Extensive simulation results demonstrate that the CRB scheme can reduce the channel access delay jitter by 54%. Springer Science+Business Media, LLC., 2012 Voice over WLANs nationallicence Consistent random backoff nationallicence Binary exponential backoff nationallicence Consistent hashing nationallicence Pack Sangheon School of Electrical Engineering, Korea University, Seoul, Korea aut Kim Kihun School of Electrical Engineering, Korea University, Seoul, Korea aut Kim Wonjung School of Electrical Engineering, Korea University, Seoul, Korea aut Song Taewon School of Electrical Engineering, Korea University, Seoul, Korea aut Min Seongman School of Electrical Engineering, Korea University, Seoul, Korea aut Wireless Personal Communications Springer US; http://www.springer-ny.com 69/4(2013-04-01), 1379-1390 0929-6212 69:4<1379 2013 69 11277 https://doi.org/10.1007/s11277-012-0639-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0639-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pack Sangheon School of Electrical Engineering, Korea University, Seoul, Korea aut NATIONALLICENCE 700 1- Kim Kihun School of Electrical Engineering, Korea University, Seoul, Korea aut NATIONALLICENCE 700 1- Kim Wonjung School of Electrical Engineering, Korea University, Seoul, Korea aut NATIONALLICENCE 700 1- Song Taewon School of Electrical Engineering, Korea University, Seoul, Korea aut NATIONALLICENCE 700 1- Min Seongman School of Electrical Engineering, Korea University, Seoul, Korea aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 69/4(2013-04-01), 1379-1390 0929-6212 69:4<1379 2013 69 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer