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Research interest in ad hoc networks has rapidly grown in the last few years. Such networks have application in both military and commercial systems such as satellites, sensors, aeronautical systems, etc. Ad hoc networks can offer numerous benefits including range extension, capacity enhancement, and reduced infrastructure costs. The choice of duplexing, multiplexing, and multiple access (D/M/MA)...
This paper presents a new call admission control (CAC) algorithm that takes into account the effect of mobility of users and adaptive modulation and coding (AMC) scheme, which can be used in orthogonal frequency division multiple access (OFDMA) systems with link adaptation. When the cell is decomposed into several concentric circles, time-frequency resources required for various traffics can be determined...
The choice of duplexing, multiplexing, and multiple access (D/M/MA) schemes defines important network characteristics at the physical and higher layers. Yet direct comparisons of available techniques are rare. Here we first analyze a simple 2-node network to illustrate some fundamental relationships among D/M/MA schemes, and then describe comparisons of orthogonal (no-interference) D/M/MA schemes...
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