Directional neighbor discovery in 60 GHz indoor wireless networks

Authors:
Jianxia Ning;Tae-Suk Kim;Srikanth V. Krishnamurthy;Carlos Cordeiro
Affiliations:
Department of Computer Science, University of California, Riverside, United States;Department of Computer Science, University of California, Riverside, United States;Department of Computer Science, University of California, Riverside, United States;Intel Corporation, United States
Venue:
Performance Evaluation
Year:
2011

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Abstract

Signal propagation in the 60 GHz band significantly differs from that in the 2.4 and 5 GHz bands. In particular, the signals are often reflected in indoor settings in this band. Directional antennas can help limit the impact of reflection, but make the process of neighbor discovery complex. We consider this problem in this paper. We examine two approaches (a) direct discovery where each node explicitly discovers its neighbors, and (b) gossip-based discovery where nodes exchange information about their already discovered neighbors. We analyze the two approaches and validate our models via simulations. We examine the impact of system parameters such as varying beamwidth and node density.