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Analysis of Drone Assisted network Coded Cooperation for LoS Environments

WIRELESS PERSONAL COMMUNICATIONS 2022年第4期127卷 3493-3510页

作者： Kumar, Pankaj Darshi, Sam Shailendra, Samar Indian Inst Technol Ropar Dept Elect Engn Ropar Punjab India Intel Technol Bangalore Karnataka India

This paper consider a Drone Assisted network Coded Cooperation (DA-NCC) scenario for Line of Sight (LoS) channel environments. For analysing the performance of DA-NCC, Decode-and-Forward (DF) protocol is used at the drone and Selection Combining (SC) is performed at the destination node. An analytical closed-form formulation of the outage probability is devised and proven through simulations to assess network performance of the DA-NCC system. In order to have a better understanding of deterministic networks, a discussion on capacity and a comparison of alternative rectangular designs for deterministic networks are also presented. Insightful results on the relation among drone height, DNC-noise and network geometry may play an important role during the performance analysis of the DA-NCC system. Using closed-form expressions of performance measures, system designers can quickly examine the effects of various parameters on the DA-NCC network's performance.

关键词： Drone Coded cooperation digital network coding noise Rician channel Outage probability

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Impact of channel correlation on network coded cooperation with two sources

引用

PHYSICAL COMMUNICATION 2021年 47卷 101374-101374页

作者： Kumar, Pankaj Darshi, Sam Shailendra, Samar IIT Ropar Dept Elect Engn Ropar 140001 Punjab India Int Inst Informat Technol Bangalore Bangalore Karnataka India

In this paper, we consider digital network Coded Cooperation (DNCC) with Decode-and-Forward (DF) relaying scheme in correlated environment. In order to quantify the performance of DNCC network, analytical closed form expression of the outage probability for Non-Line of Sight (NLoS) correlated environments is derived. For the sake of completeness and comparison, investigation of uncorrelated environments is also presented. Unlike existing investigations, it is observed that spatial correlation among channels considerably improves the performance of such networks. In particular, detrimental effects of the digital network coding (DNC) noise is abated by the channel correlation. Additionally a discussion on various deterministic geometries for such networks is also presented to get further insights about node placement. Cumulative Distribution Function (CDF) obtained for Signal to noise Ratio (SNR) of relay path can be utilized for performing diversity calculations. Outage closed form expressions derived may be used to choose network parameters judiciously in different NLoS correlated scenarios for achieving better Quality of Service (QoS) in next generation wireless networks. (C) 2021 Elsevier B.V. All rights reserved.

关键词： Cooperation digital network coding digital network coding noise Spatial correlation Capacity Outage probability Non-line of sight scenario

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