Navaie, Keivan and Valaee, Shahrokh and Sharafat, Ahmad R. and Sousa, Elvino S. (2007) Optimum model-based non-real-time downlink data transmission in heterogeneous, DS-CDMA cellular networks. IEEE Transactions on Wireless Communications, 6 (6): 9611740. pp. 2357-2367. ISSN 1536-1276
Full text not available from this repository.Abstract
Motivated by the results in [ 1] on the self-similarity of the downlink interference in heterogenous service DS-CDMA' networks, in this paper, we propose a model-based linear adaptive-predictive method to estimate the level of interference for optimizing the system throughput and minimizing the delay for non-real-time data transmission. We use a fractional Gaussian noise (fGn) model in an appropriate time-scale to represent the self-similarity in the downlink interference. The estimated interference is utilized to allocate the available power to non-real-time services. In doing so, we use a utility-based optimization scheme and dynamic programming for time-domain optimal scheduling of non-real-time traffic. Simulation results validate the fGn model and show a substantial improvement in the delay fairness and a significant increase in the average cell throughput using our proposed scheme; and confirm that the interference model is valid for a broad range of arrival rates of non-real time traffic.