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CLTC: A Cluster-Based Topology Control Framework for Ad Hoc Networks
January 2004 (vol. 3 no. 1)
pp. 18-32

Abstract—The topology of an ad hoc network has a significant impact on its performance in that a dense topology may induce high interference and low capacity, while a sparse topology is vulnerable to link failure and network partitioning. Topology control aims to maintain a topology that optimizes network performance while minimizing energy consumption. Existing topology control algorithms utilize either a purely centralized or a purely distributed approach. A centralized approach, although able to achieve strong connectivity (k--connectivity for k \geq 2), suffers from scalability problems. In contrast, a distributed approach, although scalable, lacks strong connectivity guarantees. We propose a hybrid topology control framework, Cluster-based Topology Control (CLTC), that achieves both scalability and strong connectivity. By varying the algorithms utilized in each of the three phases of the framework, a variety of optimization objectives and topological properties can be achieved. In this paper, we present the CLTC framework; describe topology control algorithms based on CLTC and prove that k-connectivity is achieved using those algorithms; analyze the message complexity of an implementation of CLTC, namely, CLTC-A, and present simulation studies that evaluate the effectiveness of CLTC-A for a range of networks.

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Index Terms:
Topology control, clustering, ad hoc networks, transmission power assignment, strong connectivity.
Chien-Chung Shen, Chavalit Srisathapornphat, Rui Liu, Zhuochuan Huang, Chaiporn Jaikaeo, Errol L. Lloyd, "CLTC: A Cluster-Based Topology Control Framework for Ad Hoc Networks," IEEE Transactions on Mobile Computing, vol. 3, no. 1, pp. 18-32, Jan. 2004, doi:10.1109/TMC.2004.1261814
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