Enhancing quality of experience using peer‐to‐peer overlay on device‐to‐device communications. (28th July 2020)

• Record Type: Journal Article
• Authors: Tetarave, Sumit; Tripathy, Somanath; Ghosh, Ratan
• Is Part Of: International journal of communication systems. Volume 33:Number 15(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-07-28
• Subjects: cellular network -- distributed hash table -- file‐sharing application -- mobile peer‐to‐peer -- P‐median -- quality of experience; Telecommunication systems -- Periodicals; 621.382
• DOI: 10.1002/dac.4546
• Languages: English
• ISSNs: 1074-5351

Abstract

Summary: With the recent development of LTE‐A/5G technologies, data sharing among mobile devices offer an attractive opportunity to reduce Internet access. However, it requires smart strategies to share the data with low trade‐offs in time, cost, and energy. Several existing schemes offer a super‐peer‐based two‐tier model using a distributed hash table (DHT) organization for smart devices having device‐to‐device (D2D)/Bluetooth/WiFi capabilities. The primary focus of these schemes has been to reduce Internet usage by increased D2D content sharing. However, the real challenge is not in creating a two‐tier model, but evolving an efficient overlay that offers enhanced opportunities for D2D content sharing over the existing model. In this paper, we formulated a P‐median‐based selection of tier‐1 devices in a distribution network and solved it using the Lagrangian relaxation method. The tier‐2 devices become clients seeking content sharing services from tier‐1 devices. A strong motivation in this work is to raise a user's perception of the grade of service known as quality of experience (QoE). We analyzed the challenge for QoE assessment in resource‐constrained smartphones under the proposed model of enhanced D2D communication. Our focus is to establish a framework to evaluate QoE for applications and services over LTE‐A/5G networks with an improved D2D communication level. The simulation and the experimental results validate the claim that substantial improvements in QoE are possible with the proposed mathematical model for selecting and placing tier‐1 mobile devices and maintaining a DHT for D2D communication. Abstract : This article present a heuristic mechanism to optimize super‐peer based DHT overlays. IT selects a small numbers smartphones as a super‐peer using the P‐median technique and solves P‐median placement using the Lagrangian relaxation method. Further, we propose a framework to determine QoE using the opinion score of the user's parameters. The results show that the proposed heuristics enhance QoE by about 25% when compared with the existing methods.