PROJECT TITLE :

Opportunistic Multiple Relay Selection With Outdated Channel State Information

ABSTRACT:

The quality of channel state information (CSI) plays a significant role in the performance of relay selection (RS) schemes in cooperative communications. Particularly in a highly mobile environment when there exists delay between the selection and data transmission instants, the quality of CSI often degrades, given to what is known as outdated CSI phenomena. In this paper, we first outline several single RS schemes that achieve full diversity when using perfect CSI and prove that the diversity order of these schemes reduces to unity if outdated CSI exists. To deal with the performance deterioration due to the outdated CSI phenomena, we propose a new multiple RS scheme for both amplify-and-forward (AaF) and decode-and-forward (DaF) relay systems, namely, the plus normalized threshold opportunistic RS . In particular, we first opportunistically select best relays from all candidate relays with respect to end-to-end signal-to-noise ratios (SNRs) for AaF and relay-to-destination SNRs for DaF. Then, the ratios of the SNRs on the rest of the candidate relays to that of the th highest SNR are tested against a normalized threshold , and only those relays passing this test are selected in addition to the best relays. The performance of the scheme is theoretically analyzed in terms of outage probability, and its asymptotic diversity order is also examined. In addition, we outline a distributed selection protocol that makes no assumption of the global CSI at each relay. Numerical results confirm the analysis and show the advantage of the proposed scheme against existing counterparts in highly dynamic networks.


Did you like this research project?

To get this research project Guidelines, Training and Code... Click Here


PROJECT TITLE :D-FROST: Distributed Frequency Reuse-Based Opportunistic Spectrum Trading via Matching With Evolving Preferences - 2018ABSTRACT:Spectrum trading creates more accessing opportunities for secondary users (SUs), and
PROJECT TITLE :Cross-Layer Performance Analysis of Cooperative ARQ With Opportunistic Multi-Point Relaying in Mobile Networks - 2018ABSTRACT:A cross-layer analysis framework is developed for the look and performance evaluations
PROJECT TITLE :Energy-Efficient and Distributed Network Management Cost Minimization in Opportunistic Wireless Body Area Networks - 2018ABSTRACT:Mobility induced by limb/body movements in Wireless Body Space Networks (WBANs) considerably
PROJECT TITLE :Enhancing Localization Scalability and Accuracy via Opportunistic Sensing - 2018ABSTRACT:Employing a mobile phone for fine-grained indoor localization remains an open drawback. Low-complexity approaches without
PROJECT TITLE : High Throughput Opportunistic Cooperative Device-to-Device Communications With Caching - 2017 ABSTRACT: To achieve the potential in providing high throughput for cellular networks by device-to-device (D2D) communications,

Ready to Complete Your Academic MTech Project Work In Affordable Price ?

Project Enquiry