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Provision of streaming media services over mobile networks
The 3G family of mobile communication standards specifications describe a streaming media service class designed for the provision of non-delay critical multimedia services. This paper describes the performance of streaming audio and video ...
Space-time pre-equaliser for the downlink channel of UMTS-TDD
This communication deals with space-time pre-equalisation for UMTS-TDD systems. The motivation for that lies in the fact that the up and downlink channels are highly correlated, and thus the equalisation functions can be moved to the BS, th...
Frequency synchronization in OFDM systems
This paper discusses the effects of frequency offset on the performance of orthogonal frequency division multiplexing (OFDM) digital communications. In this paper we present maximum likelihood (ML) algorithm for the joint estimation of samp...
An adaptive delay estimator for DS-CDMA
The multiple signal classification (MUSIC) delay estimation algorithm is well known to be insensitive to the near-far effect in an asynchronous DS-CDMA system. Most MUSIC based estimators assume the channel is time invariant. In this paper ...
Assessing the effects of GSM cell location re-use for UMTS network
The third generation cellular systems, UMTS, will provide a new range of multi-media services supported by multi-rate transmissions. Based on W-CDMA technology, the increase of complexity has raised new challenges in the design of third gen...
Joint planning of soft-capacity and soft-coverage for 3G WCDMA systems
A number of direction-specific issues on soft coverage analysis and planning along with capacity evaluation and planning, and also in resource management for third generation (3G) systems are discussed. The emphasis is on the differences be...
Matching WCDMA site configuration with coverage and capacity requirements
Identifying appropriate WCDMA site configurations forms an important part of the radio planning process. The decision must be based upon coverage and capacity requirements as well as any implications upon cost and practicalities. The first ...
Spatial channel characterisation of FDD wireless links
For smart antenna deployments in frequency division duplex (FDD) applications the downlink weight vector can be derived from the uplink steering vector. However, this assumes a degree of correlation between these channels. It is shown here ...
Dynamic pricing in cellular networks, a mobility model with a provider-oriented approach
The success of i-mode in Japan and the slow but, nevertheless, steady uptake of WAP in the UK and elsewhere indicate a healthy growth in demand for mobile data services. This rapid growth in coupled to the limited bandwidth to the air inter...
Capacity of an integrated LCD/UDD WCDMA cellular network
Analytical characterisation of low constraint delay (LCD) traffic on the uplink in a WCDMA cellular network is a well-understood procedure. However, integration of UDD traffic into existing models is not immediately obvious. For example, a ...