WONS 2004

Madonna di Campiglio
(Trento, Italy)

January 21-23, 2004

First Working Conference
Wireless On-demand Network Systems

(sponsored by IFIP WG 6.3 and 6.8)

Throughput of the Multi-Hop Slotted Aloha with Multi-Packet Reception

Marceau Coupechoux (Alcatel R&I/Institut Eurecom),
Thierry Lestable (Alcatel R&I, and Supelec),
Christian Bonnet (Institut Eurecom),
Vinod Kumar (Alcatel R&I)

Abstract - In this paper, we analyse the throughput of a multihop network, where nodes use slotted ALOHA as medium access protocol (MAC) and are able to receive simultaneously several packets in a slot. We provide a closed-form formula for the throughput in the generic case as a function of the probability, rn,k, for a receiver to decode k packets given that n have been sent in its neighborhood. We then consider several simple models for the computation of the rn,k, when spread slotted ALOHA is used. In particular, we compare the performances of a matched filter (MF) receiver with those of a linear minimum mean-square error (MMSE) multi-user detector (MUD). Capacity results show the great advantage of multi-packet reception and highlight the near-far resistance of the MUD scheme.
Published in:
Wireless On-Demand Network Systems
Proceedings of WONS2004
Lecture Notes in Computer Science LNCS2928, Springer 2004.

Pages 299-312

To browse the conference proceedings, please go to the Springer's LNCS2928 Page.