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A distributed optimization algorithm is presented for resource allocation in wireless relay networks. This algorithm is particularly useful in multiple-source, multiple-relay wireless networks employing fractional cooperation, in which each relay contributes only a fraction of its resources to each source; in this case, the algorithm is used to find the optimal fractions. The advantage of this distributed...
We consider the problem of efficiently “emptying” a wireless sensor network that has accumulated a large amount of data at its nodes and seeks to relay them to designated gateways so as to maximize a concave function of achievable transmission rates. Transmissions are subject to physical communication constraints, interference constraints, and fairness constraints. We adopt a framework where transmissions...
The wide prospects of application of Underwater Acoustic Sensor Networks (UASNs), promoting the technology of UASNs. Network topological structure makes a strong impact on the throughput, power consumption and stability of network, wherefore it is important to optimize topological structure of network for UASNs. The underwater acoustic channel is characterized by limited bandwidth, lower communication...
Recent research on network coding (NC) shows that the wireless NC can improve the network throughput in multi-hop wireless ad hoc networks since it can exploit not only the broadcast nature of the wireless channel but also the native physical-layer coding ability by mixing simultaneously arriving radio waves at relay nodes. This paper characterizes the throughput gains of two wireless NC schemes,...
One way to reduce the intercell interference in cellular networks is not to transmit strong signals from the cell borders towards the access points directly but rather to relay such transmissions to other users or relays within the cell by using much lower signal levels. This will produce much less interference in adjacent cells. For this reason, we present an intercell interference aware (IIA) network...
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