Throughput Scaling of Ultra-Wide Band Ad Hoc Networks with Infrastructure

Won-Yong SHIN

IEICE TRANSACTIONS on Communications   Vol.E95-B    No.9    pp.2918-2921
Publication Date: 2012/09/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.2918
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Fundamental Theories for Communications
Ad hoc network,  base station (BS),  infrastructure,  multi-hop,  power-limited,  throughput scaling,  ultra-wide band (UWB),  

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The impact and benefits of infrastructure support are shown by introducing an achievable throughput scaling law of a ultra-wide band (UWB) ad hoc network in which m base stations (BSs) are regularly located. The existing multi-hop scheme consisting of two variants, with and without BS help, is utilized with a slight modification. Our result indicates that the derived throughput scaling depends on the path-loss exponent due to the power-limited characteristics for all operating regimes examined. Furthermore, it is shown that the total throughput scales linearly with parameter m as m is larger than a certain level. It thus turns out the use of infrastructure is also helpful in improving the throughput scaling of UWB networks in some conditions.