Abstract—Current proposals for joint power and rate allo-cation protocols in mobile ad hoc networks require a large signaling overhead, and do not adhere to the natural time-scales of transport and physical layer mechanisms. We present a novel cross-layer design to jointly optimize the transport

designers often use geometric-graph- theoretic models for radio interference to design such cross-layer protocols. In this paper we study the problem of designing cross- layer protocols for multi-hop wireless networks using a more real- istic Signal to Interference plus Noise Ratio (SINR) model for radio

to spatial diversity gains. The theory of cooperative communications is however still immature to fully understand its broader impacts on the design of future wireless networks. This thesis contributes to the advancement of cooperative communications by developing and analyzing cooperation protocols

with and without interfering background traffic. We show that even moderate background traffic can significantly degrade network performance. Such measurements may help to optimize the orchestration between the different protocol layers and may alleviate the development of new cross-layer designs.

into account both sleep/active states, according to a cross-layer design. After character-izing the D-STAR protocol in terms of functional characteristics, the related performance is presented, in terms of network lifetime gain, setup latency, and collision probability. It has shown a remarkable gain in terms

Traditional ad hoc routing techniques do not fit the basic requirements of wireless ad hoc sensor network. So routing techniques used in sensor network are still under research. The proposed protocol is an on-demand, link-disjoint multipath routing protocol. During route establishment, the lower

We present Flush, a reliable, high goodput bulk data trans-port protocol for wireless sensor networks. Flush provides end-to-end reliability, reduces transfer time, and adapts to time-varying network conditions. It achieves these proper-ties using end-to-end acknowledgments, implicit snooping

techniques for WSNs, most of the proposed techniques have focused on energy awareness at different network layers in WSNs. Furthermore, most of the proposed techniques are based on protocols for mobile ad hoc networks that do not look into the possibility of a cross-layer design strategy that can exploit

Real-time streaming media over wireless networks is a challenging proposition due to the characteristics of video data and wireless channels. In this paper, we propose a set of cross-layer techniques for adaptive real-time video streaming over wireless networks. The adaptation is done with respect

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