Differential overlapping pulse position modulation in optical direct-detection channel

Tomoaki Ohtsuki, Iwao Sasase, Shinsaku Mori

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

We propose differential overlapping pulse position modulation (DOPPM) in optical direct-detection channel to achieve higher capacity and cutoff rate than pulse position modulation (PPM), differential PPM (DPPM) or overlapping PPM (OPPM) when the bandwidth and the average power of the channel are constrained. In order to achieve higher throughput, the proposed modulation scheme allows more than one pulse-positions per pulsewidth over DPPM. In DOPPM the slots after the optical pulse in the block are deleted by using differential technique and the next symbol starts just after the optical pulse of the previous symbol. To avoid frame synchronization problems, we analyze the performance of DOPPM under the window scheme that causes the degradation on the performance of DOPPM but is easy to analyze. We analyze both the capacity and the cutoff rate of DOPPM under this scheme. It is shown that DOPPM has higher capacity and cutoff rate than PPM, DPPM and OPPM when the average received number of photons per slot is somewhat large.

本文言語English
ホスト出版物のタイトルConference Record - International Conference on Communications
出版社Publ by IEEE
ページ680-684
ページ数5
ISBN(印刷版)0780318269
出版ステータスPublished - 1994 1月 1
イベントProceedings of the 1994 IEEE International Conference on Communications - New Orleans, LA, USA
継続期間: 1994 5月 11994 5月 5

出版物シリーズ

名前Conference Record - International Conference on Communications
2
ISSN(印刷版)0536-1486

Other

OtherProceedings of the 1994 IEEE International Conference on Communications
CityNew Orleans, LA, USA
Period94/5/194/5/5

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • 電子工学および電気工学

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