scholarly journals Specific Device Discovery Method for D2D Communication as an Underlay to LTE-Advanced Networks

2014 ◽  
Vol 13 (1) ◽  
pp. 125-134
Author(s):  
Hyang-Mi Kim ◽  
Han-Na Lee ◽  
SangKyung Kim
2020 ◽  
Vol 27 (4) ◽  
pp. 140-147
Author(s):  
Haiqiao Wu ◽  
Xiang Gao ◽  
Shaoyi Xu ◽  
Dapeng Oliver Wu ◽  
Peng Gong

Author(s):  
Rajarshi Sanyal ◽  
Ramjee Prasad

The key attributes envisioned for LTE-Advanced pertaining to 5G Networks are ubiquitous presence, device convergence, massive machine connectivity, ultrahigh throughput and moderated carbon footprint of the network and the user equipment actuated by offloading cellular data traffic and by enabling device to device communication. The present method of mobility management and addressing as the authors have foreseen in LTE Advanced can solve some issues of cellular traffic backhaul towards the access and core network by actuating a local breakout and enabling communication directly between devices. But most of the approaches look forward towards an enhancement in the radio resource allocation process and prone to interference. Besides, most of these proposals delve in Device to Device (D2D) mode initiation from the device end, but no research has so far addressed the concept of a network initiated D2D process, which can optimise the channel utilisation and network operations further. In their attempt to knot these loose ends together, the auhtors furnish the concept of WISDOM (Wireless Innovative System for Dynamic Operating Mega communications) (Badoi Cornelia-I., Prasad N., Croitoru V., Prasad R., 2011) (Prasad R., June 2013) (Prasad R.,December 2013) and SMNAT (Sanyal, R., Cianca, E. and Prasad,R.,2012a) () () () (. Further, the authors explore how SMNAT (Smart Mobile Network Access Topology) can engage with WISDOM in cooperative communication to actuate D2D communication initiated by the device or the network. WISDOM is an architectural concept for 5G Networks based on cognitive radio approach. The cognition, sustained by adaptation techniques, is a way to provide communication, convergence, connectivity, co-operation, and content, anytime and anywhere. Though D2D communication using a dedicated spectrum in multi cell environment is possible through advanced network coding or by use of fractional frequency reuse, but physical proximity of the 2 devices is still a key requisite. In this paper the authors will discuss SMNAT which employs physical layer addressing to enable D2D communication agnostic to the spatial coordinates of the devices.


2018 ◽  
Vol 7 (2.29) ◽  
pp. 700 ◽  
Author(s):  
O Hayat ◽  
R Ngah ◽  
Yasser Zahedi

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.  


2019 ◽  
Vol 108 (2) ◽  
pp. 865-878 ◽  
Author(s):  
Omar Hayat ◽  
Razali Ngah ◽  
Yasser Zahedi

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 131114-131134 ◽  
Author(s):  
Omar Hayat ◽  
Razali Ngah ◽  
Siti Zaiton Mohd Hashim ◽  
Muhammad Hashim Dahri ◽  
Reza Firsandaya Malik ◽  
...  

2017 ◽  
Vol 66 (12) ◽  
pp. 11404-11408 ◽  
Author(s):  
Jiayi Zhang ◽  
Likai Deng ◽  
Xu Li ◽  
Yuchuan Zhou ◽  
Yanan Liang ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document