在可見光通信系統(tǒng)中,游程長度受限碼可用于促進可靠的數(shù)據(jù)傳輸并提供無閃爍照明。本文提出新穎的高碼率游程長度受限碼,以改善傳輸系統(tǒng)的誤碼率性能以及減少光信號閃爍�；谟邢逘顟B(tài)機設(shè)計原理,通過優(yōu)化最小漢明距離和利用狀態(tài)分裂法獲取較小狀態(tài)數(shù),提出兩種游程長度受限碼編碼方案以獲得高編碼增益。在游程長度受限碼的編碼設(shè)計方案中,碼字集的構(gòu)造至關(guān)重要;在碼字集的設(shè)計中引入集合劃分算法準則。詳細描述各種游程長度受限碼的閃爍特性和最小漢明距離,并基于直方圖比較不同碼字的閃爍性能。最后,基于開關(guān)鍵控調(diào)制的可見光通信系統(tǒng)對所提游程長度受限碼作仿真驗證及性能分析。仿真結(jié)果表明,與現(xiàn)有游程長度受限碼相比,在閃爍控制約束下,所提游程長度受限碼的誤碼性能更優(yōu)。 

【文章來源】：Frontiers of Information Technology & Electronic Engineering. 2020,21(09)EISCICSCD

【文章頁數(shù)】：16 頁

【文章目錄】：
1 Introduction
2 RLL code design using finite-state machines
    2.1 Finite-state machines
    2.2 High-rate RLL code design with two states
3 RLL code design with large dmin
    3.1 High-rate codes with dmin=3 and small state numbers
        3.1.1 Set-partitioning algorithm
        3.1.2 FSM design for rate(n-1)/n RLL codes with dmin=3 and small state numbers
    3.2 High-rate codes with dmin=4 and small state numbers
4 Flicker analysis and simulation re-sults
    4.1 System model
    4.2 Flicker analysis
    4.3 Simulation results
5 Conclusions
Contributors
Compliance with ethics guidelines
Appendix A:Possible mapping codes for the rate 4/5 and rate 5/6 RLL codes
Appendix B:Brightness level for referenced RLL codes



本文編號：3248955