Location based reconfigurable cell site diversity techniques for LED-ID system

LED-ID wireless communication channel suffers from much impairment such as shadowing, rapid movement of reader in the home environment. In a LED-ID network environment, multiple propagation paths often exist from a Tag to a reader due to scattering by different objects. Signal copies following different paths can undergo different attenuation, distortions, delays and phase shifts. So, this is necessary to reduce the problem of fading, but not at the cost of extra power or additional bandwidth. One effective solution is proposed for LED-ID system named diversity, without the requirement of power or extra bandwidth. LED-ID system typically needs line of sight (LOS) to support narrow FOV transceivers links to achieve high data rate with sacrifice the coverage. In indoor case link blockage can happen due to the people or other obstacle. Site diversity is one of the solutions to handle this kind of shadowing. In this paper we propose a location based reconfigurable cell site diversity technique for LED-ID system.