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Although capacity has been extensively studied in wireless networks, most of the results are for homogeneous wireless networks where all nodes are assumed identical. In this paper, we investigate the capacity of heterogeneous wireless networks with general network settings. Specifically, we consider a dense network with n normal nodes and m = nb (0 < b < 1) more powerful helping nodes in a rectangular...
Hybrid wireless networks combining the advantages of both ad-hoc networks and infrastructure wireless networks have been receiving increasingly attentions because of their ultra-high performance. An efficient data routing protocol is an important component in such networks for high capacity and scalability. However, most routing protocols for the networks simply combine an ad-hoc transmission mode...
The upper and lower bounds for capacity of hybrid multi-channel wireless networks with single-interface are investigated. The network under consideration consists of two types of nodes, base stations and ad hoc nodes, and base stations are connected by high-speed wireless networks or wired networks, ad hoc nodes can communicated with each other by ad hoc ways or the help of base station node. Moreover,...
We study the multicast capacity for hybrid wireless networks consisting of ordinary wireless nodes and base stations under Gaussian channel model, which generalizes both the unicast capacity and broadcast capacity for hybrid wireless networks. We simply consider the hybrid extended network, where the ordinary wireless nodes are placed in the square region A(n) with side-length radicn according to...
Reliable routing is important to the reliable communication between end users in wireless networks. However, the infrastructure wireless networks and ad-hoc wireless networks suffer from channel congestion in routings, failing to guarantee high transmission reliability. Multi-hop cellular networks integrating the two type of networks increase the communication reliability by combining the infrastructure...
We consider a wireless collision channel, shared by a finite number of users who transmit to a common base station. Users are self-optimizing, and each wishes to minimize its average transmission rate (or power investment), subject to minimum- throughput demand. The channel quality between each user and the base station is time-varying, and partially observed by the user in the form of channel state...
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