In this paper

an Angle Diversity Optical Receiver Using Two Types of Photo Diodes（PD） with Different Field of View（2FOV-ADR） is designed in an indoor multi-cell Visible Light Communication（VLC） system. It further optimizes the parameters of the receiver with the goal of maximizing Area Spectral Efficiency（ASE）

including the elevation angle of the receiver PD and the combination method adopted. Four combination schemes are considered

namely Equal Gain Combining（EGC）

Select Best Combining（SBC）

Maximum Ratio Combining（MRC）

Minimum Mean Square Error（MMSE） combining. In comparison

the indoor Signal to Interference and Noise Ratio（SINR） distribution and ASE performance of Single PD Receiver（SR） and traditional Angle Diversity Receiver（ADR） are also simulated. It is found that 2FOV-ADR greatly improves the indoor SINR distribution. Compared with the single PD receiver and the conventional ADR

the SINR at the cell edge position is improved by 30 and 20 dB

respectively

and the 2FOV-ADR has the highest ASE at different user numbers. Therefore

2FOV-ADR can achieve better performance than single PD receivers and traditional angle diversity receivers.