A High Throughput Device-to-Device Wireless Communication System

Amin JAMALI  Seyed Mostafa SAFAVI HEMAMI  Mehdi BERENJKOUB  Hossein SAIDI  Masih ABEDINI  

Publication
IEICE TRANSACTIONS on Information and Systems   Vol.E102-D   No.1   pp.124-132
Publication Date: 2019/01/01
Online ISSN: 1745-1361
DOI: 10.1587/transinf.2018EDP7246
Type of Manuscript: PAPER
Category: Information Network
Keyword: 
device-to-device communications,  capacity enhancement,  quality of service,  network architecture,  

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Summary: 
Device-to-device (D2D) communication in cellular networks is defined as direct communication between two mobile users without traversing the base station (BS) or core network. D2D communication can occur on the cellular frequencies (i.e., inband) or unlicensed spectrum (i.e., outband). A high capacity IEEE 802.11-based outband device-to-device communication system for cellular networks is introduced in this paper. Transmissions in device-to-device connections are managed using our proposed medium access control (MAC) protocol. In the proposed MAC protocol, backoff window size is adjusted dynamically considering the current network status and utilizing an appropriate transmission attempt rate. We have considered both cases that the request to send/clear to send (RTS/CTS) mechanism is and is not used in our protocol design. Describing mechanisms for guaranteeing quality of service (QoS) and enhancing reliability of the system is another part of our work. Moreover, performance of the system in the presence of channel impairments is investigated analytically and through simulations. Analytical and simulation results demonstrate that our proposed system has high throughput, and it can provide different levels of QoS for its users.