In this paper we propose two throughput-oriented relay selection rules for multi-hop relay networks. Our rules can achieve higher throughput while maintaining reliability. We also adopt the total relay transmit power constraint to utilize transmit power more efficiently.

The paper considers the newest trends in wireless networks based on the Mesh and Relay systems. The basic idea is to perform date transmission via intermediate relay stations and thus range extension and higher throughput can be achieved. The article further introduces IEEE 802.11s and IEEE 802.16j standards that are at the present time in the process of standardization. These standards propose...

In this paper, we investigate the trust-degree-based secure relay selection in simultaneous wireless information and power transfer (SWIPT)-enabled networks. particular, optimize interference by selecting appropriate time division ratio on condition of both transmission trust degree. First, applying security capacity constraint, derive expressions concerning Then, discuss different results for ...

Existing work on placing additional relay nodes in wireless sensor networks to improve network connectivity typically assumes homogeneous wireless sensor nodes with an identical transmission radius. In compare, this paper addresses the problem of deploying relay nodes to provide fault tolerance with higher network connectivity in heterogeneous wireless sensor networks, where sensor nodes have d...

A simple technique to secure quantum key distribution relay networks is presented here. The paper introduces the concept of logical channels that uses a random dropout scheme. The paper also presents an enhanced protocol for key distribution in the relay networks. Previous techniques relied on creating distinct physical paths to create shares. Hence the compromise of one relay must compromise t...

In this letter, we address the performance analysis of underlay selective decode-and-forward (DF) relay networks in Rayleigh fading channels with non-necessarily identical fading parameters. In particular, a novel result on the outage probability of the considered system is presented. Monte Carlo simulations are performed to verify the correctness of our exact closed-form expression. Our propos...

In wireless media, secure communication is one of the important concepts. We use Identity based cryptosystems in order to provide security in two-way relay networks. But due to the use of identity of a node as their public key, this scheme lacks the anonymity and privacy preservation. So, in order to solve this problem, propose a new approach in two-way relay networks by using cooperation jammi...