In this study, we propose a cooperative transmission framework based on Adaptive Modulation and Coding (AMC) cooperative food communication system in Multiple-Input Multiple-Output (MIMO) fading channels. We consider the scenario that consists of one source node, one relay node and one destination node, they all equipped with multiple antennas and employed the adaptive modulation and coding sch...

IEEE 802.15.4 is a global standard designed for the low power consumption, low cost, and low data rate. Thus, this standard is advantageous to implement ubiquitous sensor network (USN). However, researchers do not have been studied to employ cooperative communication in this system. Cooperative relaying system has been shown to help the destination to get the spatial diversity. It is possible t...

This paper presents a cooperative control strategy for a team of aerial robotic vehicles to establish wireless airborne communication networks between distributed heterogeneous vehicles. Each aerial robot serves as a flying mobile sensor performing a reconfigurable communication relay node which enabls communication networks with static or slow-moving nodes on gorund or ocean. For distributed o...

This paper proposes a cooperative Alamouti space time transmission scheme with low relay complexity for the cooperative communication systems. In the proposed scheme, the source node combines the data symbols to construct the Alamouti-coded form at the destination node, while the conventional scheme performs the corresponding operations at the relay nodes. In simulation results, it is shown tha...

At present, the network topology in the field of cooperative communication, which is used to realize the data transmission, is becoming more and more perfect. However, the existing relay communication system is a half-duplex communication mode and works in the oneway transmission mode, although it improves the system's wireless performance, but at the expense of the spectral efficiency. In orde...

Cooperative communication is a vital area of research in wireless sensor networks due to its advantages for spatial diversity. Specifically, selective single relay cooperative communication is an area of vast research interest due to its simplicity and practicality. In this paper, we propose a selective single relay cooperative communication scheme for wireless sensor networks which adapts powe...

Cooperative communication is a fourth generation novel scheme promising significant capacity and multiplexing gain in wireless communication. This paper derives the carrier to noise interference ratio (CNIR) and average bit error rate (BER) for orthogonal frequency division multiplexing (OFDM) based amplify and forward (AF) and decode and forward (DF) scheme over Nakagami fading channels. Numer...

Battery-operated medical implants-such as pacemakers or cardioverter-defibrillators-have already been widely used in practical telemedicine and telecare applications. However, no solution has yet been found to mitigate the effect of the fading that the in-body to off-body communication channel is subject to. In this paper, we reveal and assess the potential of cooperative diversity to combat fa...

Two empirical studies are presented that explore how and why e-mail communication (versus face-to-face communication) influences cooperation in mixed motive group contexts. Results indicate that, relative to those engaging in face-to-face interaction, those who interacted via e-mail were (1) less cooperative and (2) felt more justified in being non-cooperative. Feelings of justification mediate...

As wireless communication becomes more prevalent, the demand for higher data rates and uninterrupted connectivity is increasing. Future wireless systems are provisioned to be highly heterogeneous and interconnected. On one side, wireless ad hoc networks are emerging for a wide range of new applications, on the other side; infrastructure based broadband wireless systems are expanding to provide ...