Cognitive radio (CR) is the enabling technology for supporting dynamic spectrum access:
the policy that addresses the spectrum scarcity problem that is encountered in many …

This paper provides an overview of cognitive radio (CR) networks, with focus on the recent
advances in resource allocation techniques and the CR networks architectural design. The …

We present a new metric for routing in multi-radio, multi-hop wireless networks. We focus on
wireless networks with stationary nodes, such as community wireless networks. The goal of …

Even though multiple non-overlapped channels exist in the 2.4 GHz and 5 GHz spectrum,
most IEEE 802.11-based multi-hop ad hoc networks today use only a single channel. As a …

This paper proposes a medium access control (MAC) protocol for ad hoc wireless networks
that utilizes multiple channels dynamically to improve performance. The IEEE 802.11 …

The IEEE 802.11 Wireless LAN standards allow multiple non-overlapping frequency
channels to be used simultaneously to increase the aggregate bandwidth available to end …

The wireless mobile ad hoc network (MANET) architecture has received a lot of attention
recently. This paper considers the access of multiple channels in a MANET with multi-hop …

Studies of ad hoc wireless networks are a relatively new field gaining more popularity for
various new applications. In these networks, the Medium Access Control (MAC) protocols …

Wireless technologies, such as IEEE 802.11 a, that are used in ad hoc networks provide for
multiple non-overlapping channels. Most ad hoc network protocols that are currently …

A number of algorithmic and protocol assumptions taken for granted in the design of existing
wireless communication technologies need to be revisited in extending their scope to the …