A MAC Protocol for Half-Duplex Multi-Packet Detection in SC-FDE Systems

Author

Pereira, M. ; Bernardo, L. ; Dinis, R. ; Oliveira, R. ; Carvalho, P. ; Pinto, P.

Author_Institution

FCT-UNL, New Univ. of Lisbon, Lisbon

fYear

2009

fDate

26-29 April 2009

Firstpage

1

Lastpage

6

Abstract

This paper deals with multi-packet detection for SC modulations (Single-Carrier) with FDE (Frequency-Domain Equalization). We consider iterative frequency- domain receivers that jointly perform the equalization, multi-packet separation and channel decoding operations. Our receivers allow a high throughput provided that the number of mobile terminals that is trying to access a given slot is equal to or below the multi-packet detection capacity Q_max. We propose a new MAC protocol that allows a total number of mobile terminals J above Q_max by controlling the number of mobile terminals contending to transmit. The paper evaluates the uplink saturated system throughput and proposes an optimal configuration for the packet transmission probability associated to each mobile terminal. Our analytical results are validated using physical and MAC layer simulations.

Keywords

access protocols; channel coding; equalisers; mobile communication; mobile computing; modulation; MAC protocol; SC-FDE systems; channel decoding operation; frequency domain equalization; half duplex multipacket detection; mobile terminal; multipacket separation; single carrier modulations; Access protocols; Analytical models; Base stations; Frequency; Interference; Iterative decoding; Media Access Protocol; Multiuser detection; Throughput; Wireless application protocol;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th

Conference_Location

Barcelona

ISSN

1550-2252

Print_ISBN

978-1-4244-2517-4

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2009.5073306

Filename

5073306