Future wireless communication is expected to integrate collocated different radio access technologies together to meet wide expectation (multiple services) from users and to support mobility. The key requirements in this multiple radio access technology are to meet the Quality of Service (QoS) requirement of the user based on the service type, reduce energy consumption for the particular servic...

Long Term Evolution-Advanced (LTE-A) is a mobile communication standard of high-speed data for mobile phones and data terminals. LTE-A inherits all basic technologies of LTE such as Orthogonal Frequency Division multiplexing access, Multiple Input Multiple Output, Flexible bandwidth and Provides new features to improve the capacity and Performance. Some of the new features supports by LTE-A are...

We investigate the composite effects of multipacket reception (MPR) and relaying capability in affecting the stability region of a wireless network. With a general MPR channel, a trade-off arises as to whether to activate the relay simultaneously with the source so that both transmissions might be successful, or to let the relay remain silent to overhear the source’s transmission and then activ...

It is well known that IEEE 802.11 provides a physical layer multi-rate capability. In this paper, we propose a novel MAC layer relay-enabled point coordination function (PCF) protocol, called rPCF, to exploit this capability. With multiple data rates in response to different channel conditions, if the direct link has low data rate, data packets may be delivered faster through a relay node. To e...

This paper presents a relay selection for decode-and-forward based on network coding (DF-NC) and analog-NC protocols in general scheme of cellular network system. In the propose scheme the two source node simultaneously transmit their own information to all the relays as well as the destination node, and then, a single relay i.e. best with a minimum symbol error rate (SER) will be selected to f...

A new coding scheme for general N -node relay networks is presented for unicast, multicast, and broadcast. The proposed distributed decode–forward scheme combines and generalizes Marton coding for single-hop broadcast channels and the Cover–El Gamal partial decode–forward coding scheme for 3-node relay channels. The key idea of the scheme is to precode all the codewords of the entire network at...

We investigate the composite effects of multipacket reception (MPR) and relaying capability in affecting the stability region of a wireless network. With a general MPR channel, a trade-off arises as to whether to activate the relay simultaneously with the source so that both transmissions might be successful, or to let the relay remain silent to overhear the source’s transmission and then activ...