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Distributed Opportunistic Scheduling (DOS) exploits multiuser diversity in wireless networks without the requirement of a central scheduler. With DOS, users take their own scheduling decisions based on a local observation of the channel to maximize performance. While DOS has been used in the past to optimize throughput-related figures, in this paper we use DOS to optimize the energy performance of...
In this paper, we present a resource allocation algorithm for energy consumption minimization in multi-homed wireless networks, simultaneously connecting to different wireless interfaces. Specifically, we first formulate a general problem related to minimization of energy consumption while satisfying minimum rate requirements. Then, we solve the problem by relaxing integer value constraints and applying...
Exponential growth of capacity demand is making energy efficient cellular network densification an important issue. As a network is dimensioned based on the busy hour capacity demand, a large portion of network capacity remains idle for a big part of the day. Unfortunately, the power consumption of a base station does not scale down proportionally when load decreases. In this paper, a heterogeneous...
The energy consumption of wireless access networks amounts for more than 55% of the whole communication sector and for a non negligible part of the operational costs of mobile operators. In this paper we consider possible energy savings through optimized management of on/off state and transmission power of access stations according to traffic estimates in different hours of the day or days of the...
Energy consumption of wireless access networks is in permanent increase, what results with higher operational expenditures of network operators and negative impact on environment. In this paper we consider possible energy savings of wireless access networks through development of ILP model based on energy efficient network management. To cope with the problem of high computational time characteristic...
Energy conservation is a key issue in ad hoc wireless network operation. Placing relay nodes (routers) at appropriate locations can substantially lower the power requirements of communicating nodes, thereby reducing overall energy needs. We investigate router placement (RP) for energy-constrained wireless networks, and present RP algorithms that aim to minimize total energy consumption. We consider...
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