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Topology control is one of the fundamental problems in WSNs (wireless sensor networks). It is of great importance for prolong lifetime, reducing radio interference, for prolong lifetime, increasing the efficiency of MAC (media access control) protocols and routing protocols, ensure the quality of connectivity and coverage, increasing the network service and so on. In this survey paper, different network...
In this paper, we provide a general framework of distributed medium access control (DMAC) and synchronization for ad-hoc sensor networks with omni-directional antennas. Compared to existing works that focus on minimizing the energy consumption, our design objectives aim to increase the throughput, to lower the latency, and to solve hidden and exposed nodes problem in a traffic-heavy and dynamic environment...
Topology control and energy saving is one of the most important challenges in wireless ad hoc sensor networks. There are two approaches for conserve energy in topology control algorithms. First by adjusting a node??s transmission power and second manipulating a node??s state. In this paper, multi-state k-fault tolerant topology control algorithm is presented using clustering technique to manage k...
In this paper analytical relationship between transmission range and the network connectivity is obtained as a function of number of nodes for CDMA based multihop cellular network (MCN). We show that for a network of n uniformly distributed nodes in a single cell of unit radius, the transmission range r should be sufficiently larger than radic(2 ln n/n-1) to achieve asymptotic full connectivity. The...
This paper presents an algorithm for distributed power control and scheduling over wireless ad hoc-networks, where the data rate on each link depends on the transmission power levels at interfering links (non-convex coupling between link data rates). In this paper, we first consider a K-hop interference model. We describe a message passing algorithm that finds an optimal power allocation (schedule)...
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