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System performance of multi-sector smart antenna base stations for WCDMA
In this paper, a novel approach is proposed for system level simulation of both beamforming and diversity antennas for WCDMA base stations. In order to obtain more accurate system level performance, the proposed approach takes into account ...
Authors' Index
Second International Conference on 3G Mobile Communication Technologies (Conf. Publ. No.477)
The effects of inter-system interference in UMTS at 1920 MHz
The Universal Mobile Telecommunications System (UMTS) is composed of an FDD and TDD mode. Both modes have an adjacent carrier at 1920 MHz. The implications thereof for system capacity are analysed. In this context, the FDD mode is assumed t...
Linear multi-user detectors for TDD mode of UMTS (IMT-TC)
We have examined the effect of multi-user detectors for the TDD mode of wideband CDMA, particularly the downlink. It is shown that under dispersive conditions a RAKE receiver suffers from a high mean square error at its output when all the ...
Multiple code adaptive despreader for UTRA TDD
A modified version of the minimum mean square error receiver to be used with UTRA TDD mode is presented in this paper. The structure is tested in a multipath fading channel and its equalisation and multipath access interference suppression ...
Technology requirements of the 3GPP-TDD terminal
This paper examines the technology requirements for the implementation of the 3GPP-TDD mode and discusses how the terminal complexity of the TDD mode compares to that of the FDD mode. An overview of the TDD mode covers the frequency bands, ...
Effects of synchronisation and asymmetry in UTRA-TDD
We study the interference suffered by UTRA-TDD systems taking into account synchronisation and asymmetry factors. The main conclusion from the simulation results is that the interference between base stations is potentially one of the most ...
Performance of MC-CDMA systems in multipath indoor environments. Comparison with COFDM-TDMA system
In this paper, the performance of a multi-carrier code division multiple access (MC-CDMA) system in downlink and over indoor channels is studied. The study is carried out over three channels used in the ETSI-BRAN project representative of o...
Performance and stability analysis of a random access CDMA packet network in the presence of multiple access interference
We have analysed the performance and stability of a random access CDMA packet network in the presence of MAI. The standard Gaussian approximation overestimates the BER, particularly for a small number of users. The overestimation or underes...