Effect of Packet Error Rate on Selection of Actor Nodes in WSANs: A Comparison Study of Two Fuzzy-Based Systems

2017 ◽  
pp. 114-126
Author(s):  
Donald Elmazi ◽  
Miralda Cuka ◽  
Tetsuya Oda ◽  
Elis Kulla ◽  
Makoto Ikeda ◽  
...  
Keyword(s):  
Error Rate ◽  
Packet Error Rate ◽  
Comparison Study ◽  
Selection Of

scholarly journals Symbol-Level Selective Channel Estimation in Packet-Based OFDM Systems

Sensors ◽  
2020 ◽  
Vol 20 (5) ◽  
pp. 1274
Author(s):  
Joo-Young Choi ◽  
Cheol Mun ◽  
Jong-Gwan Yook
Keyword(s):  
Wireless Communication ◽  
Channel Estimation ◽  
Error Rate ◽  
Signal To Noise Ratio ◽  
Packet Error Rate ◽  
Ofdm Systems ◽  
Channel Changes ◽  
Selective Channel ◽  
Estimation Scheme ◽  
Selection Of

Wireless access in vehicular environments to support wireless communication between vehicles has been developed to provide road safety and infotainment services. In vehicular environments where the channel changes rapidly, channel estimation is very important in improving the reliability of wireless communication. Therefore, numerous channel estimation schemes have been proposed; however, none of the schemes proposed so far can perform well over the entire signal-to-noise ratio (SNR) region. In this paper, we propose a novel channel estimation scheme that selectively uses the better scheme between two channel estimation schemes on a symbol-by-symbol basis. The results show that the proposed scheme performs symbol-by-symbol selection of the better channel estimation scheme within a packet, and thus shows excellent performance over the entire SNR region in vehicular environments in terms of the bit error rate and packet error rate.

scholarly journals Delay-Sensitive NOMA-HARQ for Short Packet Communications

Entropy ◽  
2021 ◽  
Vol 23 (7) ◽  
pp. 880
Author(s):  
Faisal Nadeem ◽  
Mahyar Shirvanimoghaddam ◽  
Yonghui Li ◽  
Branka Vucetic
Keyword(s):  
Markov Model ◽  
Error Rate ◽  
Multiple Access ◽  
Time Slot ◽  
Packet Error Rate ◽  
Packet Delivery ◽  
Delivery Delay ◽  
Delay Sensitive ◽  
Optimal Power ◽  
Short Packet

This paper investigates the two-user uplink non-orthogonal multiple access (NOMA) paired with the hybrid automatic repeat request (HARQ) in the finite blocklength regime, where the target latency of each user is the priority. To limit the packet delivery delay and avoid packet queuing of the users, we propose a novel NOMA-HARQ approach where the retransmission of each packet is served non-orthogonally with the new packet in the same time slot. We use a Markov model (MM) to analyze the dynamics of the uplink NOMA-HARQ with one retransmission and characterize the packet error rate (PER), throughput, and latency performance of each user. We also present numerical optimizations to find the optimal power ratios of each user. Numerical results show that the proposed scheme significantly outperforms the standard NOMA-HARQ in terms of packet delivery delay at the target PER.

Packet Error Rate Measurements in Low Power Wide Area Networking Technologies for IoT

2019 ◽  
Author(s):  
Lucas R. Prando ◽  
Eduardo R. Lima ◽  
Leonardo S. de Moraes ◽  
Marcio B. Hamerschmidt ◽  
Claudio F. Dias ◽  
...  
Keyword(s):  
Low Power ◽  
Error Rate ◽  
Wide Area ◽  
Packet Error Rate ◽  
Networking Technologies

Packet error rate analysis of decode-and-forward free-space optical cooperative networks in the presence of random link blockage

2017 ◽  
Vol 64 (16) ◽  
pp. 1657-1668 ◽  
Author(s):  
Nemanja Zdravković ◽  
Aleksandra Cvetkovic ◽  
Dejan Milic ◽  
Goran T. Djordjevic
Keyword(s):  
Error Rate ◽  
Free Space ◽  
Cooperative Networks ◽  
Packet Error Rate ◽  
Free Space Optical ◽  
Decode And Forward ◽  
Rate Analysis
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