LTE Advanced is a well designed system that meets the requirements of 4G cellular systems. Its standard specification has been lately released. One of its main features is supporting relaying topology inspired from ad hoc multihop networks. This paper is a survey upon the relaying architecture of LTE Advanced standard based on 3GPP Release 10 specifications. A comparison with other relaying arc...

We propose a distributed spectrum access algorithm for cognitive radio relay networks with multiple primary users (PU) and multiple secondary users (SU) utilizing multiple antennas at their transmitter. The overlay model is considered, where the PUs allow spectrum access opportunities for the SUs, in exchange for the SUs cooperatively relaying the PUs’ data in exchange for both spectrum access ...

We investigate outage performance of fixed-gain and variable-gain amplify-and-forward (AF) full-duplex (FD) relaying systems under residual loop-interference (LI) in non-identical Nakagami-m fading channels. New exact outage probability expressions are derived analytically in a single-integral form by using the cumulative distribution function approach. Moreover, tight lower-bound and asymptoti...

Peer-to-peer multihop relaying in TDMA networks can provide significant gains in network throughput, particularly when relaying is combined with relaying diversity schemes such as multihop selection combining or multihop maximal ratio combining. This paper presents a novel diversity-aware routing algorithm adapted from the Bellman-Ford algorithm which results in significant throughput gains and...

In this paper, a boosting-based incremental hybrid intrusion detection system is introduced. This system combines incremental misuse detection and incremental anomaly detection. We use boosting ensemble of weak classifiers to implement misuse intrusion detection system. It can identify new classes types of intrusions that do not exist in the training dataset for incremental misuse detection. As...

A threshold based opportunistic relaying cooperative communication protocol has been analysed in this thesis. The relay is selected opportunistically to maximize the end-to-end signal to noise ratio received at the destination. The relay selection may be proactive and reactive. The underlying communication protocol at relay is decode and forward cooperation. At destination Maximal Ratio Combini...

We propose composite decode-forward (DF) schemes for the two-way relay channel in both the fulland half-duplex modes by combining coherent relaying, independent relaying and partial relaying strategies. For the full-duplex mode, the relay partially decodes each user’s information in each block and forwards this partial information coherently with the source user to the destination user in the n...

Multi-hop cellular networking models that integrate the characteristics of both cellular and mobile ad hoc networks have received increasing attention. Finding an available relaying path is a critical prerequisite for the success of the multi-hop cellular networks. Most works use signal strength, path length and power consumption as routing criteria to select a relaying path for a mobile node r...

In this paper, we analyze the effect of resource allocation in two-relay networks with mixed relaying protocol. We assume that two relay nodes exist between the source node and destination node, and one relay node adopts decode-and-forward (DF) relaying protocol and the other one uses amplify-andforward (AF) relaying protocol. Differential modulation scheme is applied for all cases to bypass ch...

D3.5 presents relaying as an integral part of the WINNER system concept. The relay based deployment concept allows deploying the WINNER broadband radio interface cost efficiently. Suitable assumptions have been made on the technical solutions as guideline for the definition of protocol requirements. The relay is presented as part of the overall WINNER system concept in the WINNER logical nodes ...