Scheduling parallel data retrievals for non-consecutive broadcast in MIMO wireless networks

Abstract

Wireless data broadcast is usually used to disseminate the public information to considerable clients in wireless environment. Based on the development of mobile device, some mobile devices can simultaneously use multiple antennae to process some operations. In this paper, we commit to study data retrieval scheduling problem in wireless data broadcast, which mobile device has multiple antennae and the data items are non-consecutively broadcasted in multiple parallel channels. In order to improve the performance of downloading requested data items, we propose a scheme of scheduling parallel data retrievals for non-consecutive broadcast to decrease access latency and energy consumption. In this scheme, we utilize a weight of channel through two balancing factors to choose the suitable channel for data retrieval. We analyze the performance of proposed scheme and the other schemes. Evaluation results prove that the proposed scheme has the better performance.