Wireless Powered Asynchronous Backscatter Networks with Sporadic Short Packets: Performance Analysis and Optimization

01/29/2018
by   Qian Yang, et al.
0

In the fifth generation era, the pervasive applications of Internet of Things and massive machine-type communications have initiated increasing research interests on the backscatter wireless powered communication (B-WPC) technique due to its ultra high energy efficiency and low cost. The ubiquitous B-WPC network is characterized by nodes with dynamic spatial positions and sporadic short packets, of which the performance has not been fully investigated. In this paper, we give a comprehensive analysis of a multi-antenna B-WPC network with sporadic short packets under a stochastic geometry framework. By exploiting a time-space Poisson point process model, the behavior of the network is well captured in a decentralized and asynchronous transmission way. We then analyze the energy and information outage performance in the energy harvest and backscatter modulation phases of the backscatter network, respectively. The optimal transmission slot length and division are obtained by maximizing the network-wide spatial throughput. Moreover, we find an interesting result that there exists the optimal tradeoff between the durations of the energy harvest and backscatter modulation phases for spatial throughput maximization. Numerical results are demonstrated to verify our analytical findings and show that this tradeoff region gets shrunk when the outage constraints become more stringent.

READ FULL TEXT
research
05/04/2019

A Throughput and Energy Efficiency Scheme for Unlicensed Massive Machine Type Communications

In this paper the throughput and energy efficiency of an unlicensed mach...
research
05/13/2021

Reliable and Secure Short-Packet Communications

Exploiting short packets for communications is one of the key technologi...
research
03/04/2019

Secure Short-Packet Communications for Mission-Critical IoT Applications

In pervasive Internet of Things (IoT) applications, the use of short pac...
research
07/27/2023

Low-Latency Massive Access with Multicast Wake Up Radio

The use of Wake-Up Radio (WUR) in Internet of Things (IoT) networks can ...
research
01/28/2019

Secrecy Throughput Maximization for Full-Duplex Wireless Powered IoT Networks under Fairness Constraints

In this paper, we study the secrecy throughput of a full-duplex wireless...
research
02/16/2022

Error Floor Analysis of Irregular Repetition ALOHA

With the rapid expansion of the Internet of Things, the efficient sharin...
research
08/25/2020

Grant-Free Access: Machine Learning for Detection of Short Packets

In this paper, we explore the use of machine learning methods as an effi...

Please sign up or login with your details

Forgot password? Click here to reset