ACM Transactions on Computer Systems (TOCS)
Characterizing the interaction between routing and MAC protocols in ad-hoc networks
Proceedings of the 3rd ACM international symposium on Mobile ad hoc networking & computing
RDRN: a prototype for a rapidly deployable radio network
ACM SIGMOBILE Mobile Computing and Communications Review
Design and implementation of software radios using a general purpose processor
Design and implementation of software radios using a general purpose processor
Biologically inspired cognitive radio engine model utilizing distributed genetic algorithms for secure and robust wireless communications and networking
DIMSUMNet: New Directions in Wireless Networking Using Coordinated Dynamic Spectrum Access
WOWMOM '05 Proceedings of the Sixth IEEE International Symposium on World of Wireless Mobile and Multimedia Networks
Optimizing Protocol Interaction Using Response Surface Methodology
IEEE Transactions on Mobile Computing
Design challenges for energy-constrained ad hoc wireless networks
IEEE Wireless Communications
A cautionary perspective on cross-layer design
IEEE Wireless Communications
Speakeasy: the military software radio
IEEE Communications Magazine
IEEE Journal on Selected Areas in Communications
Factor interaction on service delivery in mobile ad hoc networks
IEEE Journal on Selected Areas in Communications
Cognitive radio: brain-empowered wireless communications
IEEE Journal on Selected Areas in Communications
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The flexibility of cognitive and software-defined radio heralds an opportunity for researchers to reexamine how network protocol layers operate with respect to providing quality of service aware transmission among wireless nodes. This opportunity is enhanced by the continued development of spectrally responsive devices-ones that can detect and respond to changes in the radio frequency environment. Present wireless network protocols define reliability and other performance-related tasks narrowly within layers. For example, the frame size employed on 802.11 can substantially influence the throughput, delay, and jitter experienced by an application, but there is no simple way to adapt this parameter. Furthermore, while the data link layer of 802.11 provides error detection capabilities across a link, it does not specify additional features, such as forward error correction schemes, nor does it provide a means for throttling retransmissions at the transport layer (currently, the data link and transport layer can function counterproductively with respect to reliability). This paper presents an analysis of the interaction of physical, data link, and network layer parameters with respect to throughput, bit error rate, delay, and jitter. The goal of this analysis is to identify opportunities where system designers might exploit cross-layer interactions to improve the performance of Voice over IP (VoIP), instant messaging (IM), and file transfer applications.