Research Article
On the Responsiveness-Diversity-Multiplexing Tradeoff
@INPROCEEDINGS{10.1109/WIOPT.2007.4480059, author={Petros Elia and Somsak Kittipiyakul and Tara Javidi}, title={On the Responsiveness-Diversity-Multiplexing Tradeoff}, proceedings={5th International ICST Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks}, publisher={IEEE}, proceedings_a={WIOPT}, year={2008}, month={3}, keywords={Buffer storage Decoding Delay effects Error analysis Fading Information analysis Performance analysis Rayleigh channels Stochastic processes Traffic control}, doi={10.1109/WIOPT.2007.4480059} }- Petros Elia
Somsak Kittipiyakul
Tara Javidi
Year: 2008
On the Responsiveness-Diversity-Multiplexing Tradeoff
WIOPT
IEEE
DOI: 10.1109/WIOPT.2007.4480059
Abstract
The work analyzes the error performance of high-SNR, high-rate, point-to-point, outage-limited, wireless communications, with bursty and delay-limited information. In this setting, the bit-arrival process is stochastic and bursty, and the bits are limited by a strict delay condition. In the presence of fixed transmission rate, errors are due to both decoding and delay violations, and are attributed to sequences of atypical bursts of information and a typical fading realizations. For the case of fast Rayleigh channel fading, and compound Poisson bit-arrival process, the work presents bounds on a tradeoff between diversity and the ratio of average bit-arrival rate to ergodic-capacity. This tradeoff describes a uniform scalar effect of burstiness on the maximum amount of diversity that can be accumulated given a delay limitation. For large burstiness, the bounds are tight. As a practical consequence, the tradeoff addresses the question of how much of the maximum allowable time should be spent on coding and how much for timely and responsive accommodation of the queue.