Line Strip Multibeam Transmitter for Optical Wireless systems

We propose a novel optical wireless (OW) configuration that employs a line strip multibeam transmitter (LSMT) in conjunction with a narrow field-of-view (FOV) direction diversity receiver. Such a configuration overcomes the drawbacks and combines the advantages of both types of optical wireless links namely line-of-sight and diffuse links. The main target is to combat the effect of multipath dispersion and to improve the system performance when the system operates under the constraints of background noise and multipath dispersion. Compared to conventional diffuse system that employs a wide FOV receiver, SNR results are presented demonstrating that our LSMT with only three branches diversity gives about 23 dB improvement. The results also show that the pulse spread, which induces intersymbol interference, is significantly reduced when the LSMT with diversity detection is used.