Cross-Layer Enhancement for WLAN Systems based on a Distributed Queuing MAC protocol

Author

Verikoukis, Ch V. ; Alonso, J. ; Kartsakli, E. ; Cateura, A. ; Alonso, L.

Author_Institution

Telecommun. Technol. Centre of Catalonia, Barcelona

Volume

3

fYear

2006

fDate

7-10 May 2006

Firstpage

1293

Lastpage

1297

Abstract

Cross-Layer optimization is an emerging research topic. This paper proposes two novel cross-layer mechanisms to be included in a WLAN system where a near-optimum distributed MAC protocol is used. Their performance in terms of throughput and packet delay is analysed, and a significant system efficiency improvement is shown. This benefit is achieved by means of a PHY-MAC dialogue and a smart scheduling of the radio resources. Transmissions are scheduled taking into account the measurements of the channel state and the waiting time of packets in the accessing system. The two proposed mechanisms have different performance behaviour and thus present a trade-off between system enhancement and fairness. The obtained results emphasize the advantages of the proposed schemes and the importance of cross-layer design in wireless communication systems

Keywords

access protocols; queueing theory; scheduling; wireless LAN; PHY-MAC dialogue; WLAN systems; cross-layer enhancement; distributed queuing MAC protocol; packet delay; radio resources; smart scheduling; wireless communication systems; Access protocols; Delay; Media Access Protocol; Physical layer; Quality of service; Resource management; Throughput; Wireless LAN; Wireless application protocol; Wireless communication; Cross-Layer techniques; MAC protocols; Radio Resource Management; Scheduling; WLAN; component;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd

Conference_Location

Melbourne, Vic.

ISSN

1550-2252

Print_ISBN

0-7803-9391-0

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2006.1683043

Filename

1683043