A resource allocation scheme for capacity improvement in the downlink of wideband CDMA networks

Authors:
Oladipupo O Oyefuga;Mustafa K Gurcan;Zenon Ioannou
Affiliations:
Department of Electrical and Electronic Engineering, Communications and Signal Processing Research Group, Imperial College, Exhibition Road, London SW7 2BT, UK;Department of Electrical and Electronic Engineering, Communications and Signal Processing Research Group, Imperial College, Exhibition Road, London SW7 2BT, UK;Department of Electrical and Electronic Engineering, Communications and Signal Processing Research Group, Imperial College, Exhibition Road, London SW7 2BT, UK
Venue:
Computer Communications
Year:
2004

Citing 5
Cited 0

Multi-server threshold queues with hysteresis

Performance Evaluation
Stochastic complement analysis of multi-server threshold queues with hysteresis

Performance Evaluation
Channel access algorithms with active link protection for wireless communication networks with power control

IEEE/ACM Transactions on Networking (TON)
Minimisation of the update response time in a distributed database system

Performance Evaluation
A scheme for throughput maximization in a dual-class CDMA system

IEEE Journal on Selected Areas in Communications

Quantified Score

Hi-index	0.24

Visualization

Abstract

This paper shows the existence of a limit on the maximum throughput that can be achieved in a W-CDMA cell. This limit is due to co-channel interference and is dependent on the number of users transmitting simultaneously. A probability transmission scheme is suggested to increase the throughput limit by reducing the number of users transmitting together. The probability transmission scheme is implemented by matching the arrival process to discrete transmission rates and probabilities. To combat wastage of resources, a threshold based buffer management scheme is used in conjunction with the probability transmission scheme. Simulations show that over 35% capacity improvement is achievable while keeping the average packet delay within tolerable limits.