On the Estimation of Synchronous Scramblers in Direct Sequence Spread Spectrum Systemsopen access
- Authors
- Kim, Dongyeong; Song, Junghwan; Yoon, Dongweon
- Issue Date
- Sep-2020
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Estimation; Spread spectrum communication; Computational complexity; Parameter estimation; Receivers; Forensics; Object recognition; Linear feedback shift register; spread spectrum; scrambler; estimation
- Citation
- IEEE ACCESS, v.8, pp.166450 - 166459
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE ACCESS
- Volume
- 8
- Start Page
- 166450
- End Page
- 166459
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/8925
- DOI
- 10.1109/ACCESS.2020.3023425
- Abstract
- In a non-cooperative context, the receiver has no information about communication parameters; therefore, it must perform communication forensics, which is the process of identifying what information it can from the collected data. This paper proposes a novel method for parameter estimation of synchronous scramblers in direct sequence spread spectrum systems. For the estimation, we use the bitwise relations inherent in the scrambling sequence and the repetitive patterns by the spreading code inherent in the scrambled sequence. Regarding computational complexity, previous studies of parameter estimation of synchronous scramblers require exponential computational complexities. Unlike the existing methods, our proposed method can practically estimate the feedback polynomial and initial state of the synchronous scrambler with polynomial computational complexity.
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Collections - 서울 공과대학 > 서울 융합전자공학부 > 1. Journal Articles
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