The relay channel consists of a transmitter input x1, a relay input x2, a relay output y2 and a receiver output y3. In this report, we combine a degraded semi-deterministic relay channel with a semi-deterministic orthogonal relay channel to obtain a new mixture relay channel. For the new mixture relay channel, a combination of the compress-and-forward strategy and the partial decode-and-forward...

In a relay channel, between the sender X and the the receiver Y lies at least one relay. Generally, the relay can both transmit its own information and help forwarding other sources’ information. This summary considers the latter case, i.e., the relay intends solely to help the receiver. The relay and the transmitter cooperate to resolve the receiver’s uncertainty. Due to the presence of relay,...

Faults in the power system affect reliability, safety, and stability. Power-distribution systems are familiar with different faults that can damage overall performance of entire system, from which they need to be effectively cleared. Underground more complex require extra accuracy fault detection location for optimum management. Slow processing unavailability a protection zone relay coordinatio...

This letter introduces a joint design method for uplinkdownlink multiple-input multiple-output (MIMO) relay communication systems in which the source nodes transmit information to the destination nodes with the help of a relay. We propose a signal forwarding schceme based on the minimum mean-square error (MMSE) approach in uplink relay systems. Exploiting the duality of relay systems, we also p...

This paper investigates rate adaptation schemes for decoding-and-forward (DF) relay system based on random projections codes (RPC). We consider a classic three node relay system model, where relay node performs on half-duplex mode. Then, we give out receiving diversity relay scheme and coding diversity relay scheme, and present their jointly decoding methods. Furthermore, we discuss the perform...

Relay based cooperative spectrum sensing elevates the spectrum sensing problems in harsh propagation conditions if the relay nodes are positioned suitably for the dynamic spectrum access systems. This article investigates the performance of relay based spectrum sensing (energy detection based) in myriad fading environments using the area under the receiver operating characteristic curve (AUC) p...

With the increasing penetration of distributed generations, preserving protection system coordination is great importance for distribution network operation. This paper presents a supplementary strategy multi-agent (MAS)-based hierarchical scheme (HPS). The primary level MAS-based HPS clears fault and preserves while higher levels update relay settings. key advantage proposed that can autonomou...

This thesis presents BlueRelay, a novel protocol that extends the Bluetooth specification to support multi-hop wireless communication. Bluetooth is a wireless communication protocol originally designed for point-to-point communication within a small network called a piconet, where a master has centralized coordination over slave devices. The purpose of BlueRelay is to enable inter-piconet commu...

In this paper, we consider two-way orthogonal frequency division multiplexing (OFDM) relay channels, where the direct link between the two terminal nodes is too weak to be used for data transmission. The widely known per-subcarrier decode-and-forward (DF) relay strategy, treats each subcarrier as a separate channel, and performs independent channel coding over each subcarrier. We show that this...