Increasing secret key capacity of OFDM systems: a geometric program approach

2016 ◽  
Vol 29 (16) ◽  
pp. e3966 ◽  
Author(s):  
Longwang Cheng ◽  
Wei Li ◽  
Li Zhou ◽  
Chunsheng Zhu ◽  
Jibo Wei ◽  
...  
Keyword(s):  
Ofdm Systems ◽  
Secret Key ◽  
Geometric Program ◽  
Program Approach

scholarly journals Secret Key Generation Protocol for Optical OFDM Systems in Indoor VLC Networks

2017 ◽  
Vol 9 (2) ◽  
pp. 1-15 ◽  
Author(s):  
Yahya Mohammed Al-Moliki ◽  
Mohammed Thamer Alresheedi ◽  
Yahya Al-Harthi
Keyword(s):  
Key Generation ◽  
Ofdm Systems ◽  
Secret Key ◽  
Secret Key Generation ◽  
Optical Ofdm

A Novel Secret Key Generation Method in OFDM System for Physical Layer Security

2016 ◽  
Vol 8 (1) ◽  
pp. 21-34 ◽  
Author(s):  
Wang Dong ◽  
Hu Aiqun ◽  
Peng Linning
Keyword(s):  
Orthogonal Frequency Division Multiplexing ◽  
Data Extraction ◽  
Gray Code ◽  
Extraction Process ◽  
Physical Layer ◽  
Key Generation ◽  
Ofdm Systems ◽  
Secret Key ◽  
Randomness Test ◽  
Secret Keys

In this paper, a novel physical layer key generation method for extracting secret key from mutual channel information in orthogonal frequency division multiplexing (OFDM) systems has been proposed. Firstly, a well-designed data extraction process has been introduced to reduce the redundancy and inconsistency of channel state information (CSI). After that, a new quantization method using gray code is proposed. Furthermore, an associated method is designed to reduce key error rate (KER). With these improvements, higher key generation rate (KGR) can be obtained compared to existing methods. Finally, available secret keys have been generated after information reconciliation and privacy amplification. The proposed method has been analyzed and verified in long term evolution advanced (LTE-A) systems and the generated secret keys have passed randomness test.

Joint Blind Estimation of Channel Length and Noise Variance in OFDM Systems

2011 ◽  
Vol E94-B (12) ◽  
pp. 3614-3617
Author(s):  
Bin SHENG ◽  
Pengcheng ZHU ◽  
Xiaohu YOU
Keyword(s):  
Channel Length ◽  
Blind Estimation ◽  
Ofdm Systems ◽  
Noise Variance

Pilot Cluster ICI Suppression in OFDM Systems Based on Coded Symbols

2018 ◽  
Vol E101.B (11) ◽  
pp. 2320-2330
Author(s):  
Yong DING ◽  
Shan OUYANG ◽  
Yue-Lei XIE ◽  
Xiao-Mao CHEN
Keyword(s):  
Ofdm Systems
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