Evaluations of a 4G Uplink System Based on Adaptive Single-Carrier TDMA
Paper i proceeding, 2005

© 2005 IEEE. Recent research has shown that a single-carrier system with frequency domain equalization can be a potential alternative to an OFDM-based system in a single user case. In this paper we propose and evaluate an adaptive single-carrier TDMA uplink with scheduling for broadband cellular packet data systems. Frequency division duplex (FDD) is assumed. Multiuser channel estimation and channel prediction are considered. The adaptive modulation scheme is optimized to maximize the throughput including also the ARQ part of the transmission. Frequency domain equalization is employed to combat the inter-symbol-interference (ISI). With the proposed design, the simulation results show that the multiuser diversity gain in spectral efficiency is limited in a wideband system, which indicates that an OFDM based system might be a more favorable candidate.

wireless-ip

Författare

Wei Wang

Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Tony Ottosson Gadd

Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Tommy Svensson

Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Arne Svensson

Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Mikael Sternad

Uppsala universitet

Proceedings IEEE Vehicular Technology Conference Fall, Dallas, Texas, USA

1550-2252 (ISSN)

1667-1671

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Data- och informationsvetenskap

DOI

10.1109/VETECF.2005.1558225

ISBN

0780391527