Effective data collection scheme for real-spatial group communication over hybrid infra-ad hoc wireless networks

Abstract

This paper presents an effective data collection scheme to provide group communications among appropriate members selected by each user's geographic situation and preference (real-spatial information). When each user directly notifies central servers of user's information via wireless network infrastructure (Wi-infra), message delivery latency and losses drastically increase due to the network congestion. Therefore, we employ representative nodes (RNs) selected in a distributed manner. The RN first collects the real-spatial information from neighboring nodes via an ad hoc network and then notifies the server via Wi-infra. From simulation experiments, our scheme can drastically reduce both message delivery latency and losses.