This paper focuses on Byzantine attack detection for Gaussian two-hop one-way relay network, where an amplify-and-forward relay may perform Byzantine attacks by forwarding altered symbols to the destination. For facilitating attack detection, we utilize the openness of wireless medium to make the destination observe some secured signals that are not attacked. Then, a detection scheme is develop...

Molecular communication is a novel paradigm that uses molecules as an information carrier to enable nanomachines to communicate with each other. Interconnections of the nanomachines with molecular communication is envisioned as a nanonetwork. Nanonetworks are expected to enable nanomechines to cooperatively share information such as odor, flavour, light, or any chemical state. In this paper, we...

Title of dissertation: BEAMFORMING ALGORITHMS FOR INFORMATION RELAYING IN DENSE WIRELESS NETWORKS Mohamed Abdallah, Doctor of Philosophy, 2006 Dissertation directed by: Assistant Professor Haralabos C. Papadopoulos Department of Electrical and Computer Engineering In this dissertation we develop a class of bandwidth-efficient algorithms for information relaying in large-scale wireless ad-hoc ne...

Reliable transmission of a discrete memoryless source over a multiple-relay relay-broadcast network is considered. Motivated by sensor network applications, it is assumed that the relays and the destinations all have access to side information correlated with the underlying source signal. Joint source-channel cooperative transmission is studied in which the relays help the transmission of the s...

This paper discusses two coding approaches for a network of half-duplex relay terminals and presents achievable rates for the discrete memoryless relay channel. Both proposals gain on an implicit (in case of compress-and-forward) or explicit (in case of decode-and-forward) inter-relay cooperation.

We study the two-user MIMO block fading twoway relay channel in the non-coherent setting, where neither the terminals nor the relay have transmit or receive knowledge of the channel realizations. We present a lower bound on the achievable sum-rate with decode-and-forward (DF) at the relay node. As a byproduct we present an achievable pre-log region of the DF scheme, defined as the limiting rati...

L2TP Active Discovery Relay for PPPoE describes a method to relay Active Discovery and Service Selection functionality from PPPoE over the reliable control channel within L2TP. Two new L2TP control message types and associated PPPoE-specific Attribute Value Pairs (AVPs) for L2TP are defined. This relay mechanism provides enhanced integration of a specific feature in the PPPoE tunneling protocol...

Channel capacity; Decode-and-forward; Half-duplex; Iterative decoding; Polar coding; Relay channel Abstract In this paper, a novel transmission protocol based on polar coding is proposed for the half-duplex degraded relay channel. In the proposed protocol, referred to as the partial message relaying, the relay only needs to forward a part of the decoded source message that the destination needs...

A method to improve the reliability of data transmission between two terminals without using multiple antennas is cooperative communication, where spatial diversity is introduced by the presence of a relay terminal. The Quantize and Forward (QF) protocol is suitable to implement in resource constraint relays, because of its low complexity. In prior studies of the QF protocol, all channel parame...

Cooperative diversity has been recently proposed as a way to form virtual antenna arrays that provide dramatic gains in slow fading wireless environments. However most of the proposed solutions require simultaneous relay transmissions at the same frequency bands, using distributed space-time coding algorithms. Careful design of distributed space-time coding for the relay channel, is usually bas...