Abstract
Previously, we have proposed the optical wireless multiple-input multiple-output communications (OMIMO) to achieve a high speed transmission with a compact transmitter and receiver. In OMIMO, the transmission signal is degraded by optical beat interference (OBI) when we use the same wavelength at the optical transmit antennas. However, the influence of OBI has not been clarified. In this paper, we evaluate the influence of OBI on OMIMO, where we consider the linear array and square array of optical transmit and receive antennas. We analyze the signal-to-interference-plus-noise ratio (SINR) and the bit error rate (BER) of OMIMO when the same wavelength is used at the optical transmit antennas. We employ on-off keying (OOK) and subcarrier multiplexing (SCM) for each optical transmit antenna. From the numerical result, we clarify the influence of OBI on OMIMO and show that by using zero-forcing (ZF) or singular-value-decomposition (SVD), we can reduce the size of transmitter and receiver compared to space division multiplexing (SDM).
| Original language | English |
|---|---|
| Pages (from-to) | 954-958 |
| Number of pages | 5 |
| Journal | IEEE International Conference on Communications |
| Volume | 2 |
| Publication status | Published - 2005 Sep 15 |
| Externally published | Yes |
| Event | 2005 IEEE International Conference on Communications, ICC 2005 - Seoul, Korea, Republic of Duration: 2005 May 16 → 2005 May 20 |
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering