Browse Conferences

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 ...

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...

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...

This paper presents an analytical method for estimation of sectorization gain in CDMA cellular systems. Non-ideal antenna radiation patterns are investigated in order to identify the factors which limit the sectorization gain. These include...

In this paper, we propose reverse link transmission (both traffic and pilot) to be gated 50% of the time for 1/8 rate speech transmission and show that significant talk time and reverse link capacity improvement can be achieved out of this ...

In this paper, we analyse the MAI (multiple access interference) characteristics of mixed services (voice, circuit data, and packet data) in UMTS FDD-WCDMA mode. According to the various traffic and the system parameters [ETSI], the combina...

Wideband CDMA has been selected as the access technique for the next generation communication system. Consequently, it has received a significant amount of attention in provision of advanced algorithms for improved performance. Accurate pow...

Performance of a reverse link wideband CDMA cellular system with fast closed-loop power control is studied in this paper. The channel is modelled as frequency selective fading. The probability of bit error, P/sub c/, is used as the performa...

Power control is an important issue in the capacity of DS-CDMA cellular systems to tackle the near-far problem, co-channel interference and varying signal strength in fading channels. In this paper, we propose an adaptive signal-interferenc...

Knowledge of the radio channel conditions help in improving the performance of the receiver as well as in maintaining the quality of service required by different applications supported by the third generation wireless systems. Power contro...