Open AccessCooperative GPS and Neighbors Awareness Based Device Discovery for D2D Communication in in-Band Cellular Networks
Author(s) -
Omar Hayat,
Razali Ngah,
Yasser Zahedi
Publication year - 2018
Publication title -
international journal of engineering and technology
Language(s) - English
Resource type - Journals
ISSN - 2227-524X
DOI - 10.14419/ijet.v7i2.29.14001
Subject(s) - computer science , global positioning system , channel (broadcasting) , computer network , base station , neighbor discovery protocol , node (physics) , wireless , code (set theory) , telecommunications , engineering , the internet , internet protocol suite , structural engineering , set (abstract data type) , world wide web , programming language
Device to Device (D2D) communication is a new paradigm for next-generation wireless systems to offload data traffic. A device needs to discover neighbor devices on the certain channel to initiate the D2D communication within the minimum period. A device discovery technique based on Global Positioning System (GPS) and neighbor awareness base are proposed for in-band cellular networks. This method is called network-centric approach, and it improves the device discovery efficiency, accuracy, and channel capacity. The differential code is applied to measure the signal to noise ratio of each discovered device. In the case that the signal to noise ratio (SNR) of two devices is above a specified threshold value, then these two devices are qualified for D2D communication. Two procedures are explored for device discovery; discovery by CN (core network) and eNB (evolved node B) cooperation with the help of GPS and neighbor awareness. Using ‘Haversine’ formula, SNR base distance is calculated. Results show an increment in the channel capacity relative to SNR obtained for each device.