Title :
Increasing the Capacity of IEEE 802.11 Wireless LAN through Cooperative Coded Retransmissions
Author :
Loyola, Luis ; Lichte, Hermann S. ; Aad, Imad ; Widmer, Joerg ; Valentin, Stefan
Author_Institution :
Docomo Euro-Labs., Munich
Abstract :
In this paper a cooperative retransmission scheme for 802.11 WLANs is proposed. The mechanism allows stations with good channel to the access point to retransmit packets on behalf of other stations with worse channel. The cooperative partner selection is carried out in a completely opportunistic and distributed way that is compatible with 802.11. Simulations performed in a realistic WLAN scenario with adaptive modulation show that the system provides considerable gains in terms of goodput and packet error rate in comparison with legacy 802.11.
Keywords :
adaptive modulation; error statistics; wireless LAN; wireless channels; IEEE 802.11 wireless LAN; adaptive modulation; cooperative coded retransmission; cooperative partner selection; packet error rate; packet retransmission; Computer networks; Forward error correction; MIMO; Modulation coding; Peer to peer computing; Physical layer; Rayleigh channels; Signal to noise ratio; Throughput; Wireless LAN;
Conference_Titel :
Vehicular Technology Conference, 2008. VTC Spring 2008. IEEE
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-1644-8
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2008.400
