Now showing items 131-136 of 136
Progressive source-channel coding of images over bursty error channels
Transmission of compressed image data over noisy channels is an important problem and has been investigated in a variety of scenarios. In this paper, we propose a progressive time-varying source-channel coding system for ...
User Cooperation Diversity--Part I: System Description
Mobile users' data rate and quality of service are limited by the fact that, within the duration of any given call, they experience severe variations in signal attenuation, thereby necessitating the use of some type of ...
Subspace-based Tracking of Multipath Channel Parameters for CDMA Systems
In this paper, we evaluate several issues in the application of subspace based methods to tracking channel parameters in Code Division Multiple Access (CDMA) communication systems, in the presence of multipath fading. We ...
Efficient Multiuser Receivers for CDMA Systems
We focus on the design of multiuser receiver structures for Code Division Multiple Access (CDMA) communication systems, in the presence of multipath elects and multiple sensors at the base station receiver. We present a ...
User Cooperation Diversity--Part II: Implementation Aspects and Performance Analysis
This is the second in a two-part series of papers on a new form of spatial diversity, where diversity gains are achieved through the cooperation of mobile users. Part I described the user cooperation concept and proposed ...
Outage behaviour with delay and CSIT
In this paper, we demonstrate that the packet outage probability for fading channels can be significantly reduced by exploiting queuing delay and transmitter channel information. Queuing delay gain is conceptually similar ...