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The multi-access scheme of 802.11 wireless networks imposes difficulties in achieving predictable service quality in multi-hop networks. In such networks, the residual capacity of wireless links should be estimated for resource allocation services such as flow admission control. In this paper, we propose an accurate and non-intrusive method to estimate the residual bandwidth of an 802.11 link. Inputs...
Mesh networking has recently been advocated as an efficient and low-cost approach for providing high speed access to the Internet. Before such networks are able to support high-bandwidth data transfers in reality, a number of challenges must be addressed including routing, channel and radio interface assignments, radio resource management, and MAC scheduling. Our focus in this paper is to provide...
In this paper, we propose a cognitive radio-based multi-user resource allocation framework for mobile ad hoc networks using multi-carrier DS CDMA modulation over a frequency-selective fading channel. In particular, given pre-existing communications in the spectrum where the system is operating, in addition to potential narrow-band interference, a channel sensing and estimation mechanism is provided...
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