Spectral Analysis of (Multi-) Pulse-Position Modulation

Abstract Nowadays, laser communication has received great achievements owing to its advantages, e.g., large channel capacity, easy miniaturization of system and strong anti-interference ability in different conditions. Pulse position modulation (PPM), as an important technology that transmit signal with lower power, is attracting much attention. However, the performance scheme highly depends on bandwidth transmission. To remedy this defect PPM, multipulse (MPPM) proposed increase accuracy limit. This stronger than PPM. Therefore, there been rising interest studying characteristics multi-PPM. In article, we developed appropriate mathematical model represent a PPM transmission, analyzed spectrum transmission characterized Compared benchmarks MPPM scheme, discussed. According analysis, strongly increases band-utilization efficiency, however better bit error rate (BER) MPPM.