High Quality Content by WIKIPEDIA articles! In the field of wireless communication, Macrodiversity is a kind of diversity scheme where several receiver antennas and/or transmitter antennas are used for transferring the same signal. The distance between the transmitters is much longer than the wavelength, as opposed to micro-diversity where the distance is in the order of or shorter than the wave length. In a cellular network or a wireless LAN, macro-diversity implies that the antennas are typically situated in different base station sites or access points. Receiver macro-diversity is a form of antenna combining, and requires an infrastructure that modiates the signals from the local antennas or receivers to a central receiver or decore. Transmitter macro-diversity may be a form of simulcasting, where the same signal is sent from several nodes. If the signals are sent over the same physical channel, the tranmitters are said to form a single frequency network - a term used especially in the broadcasting world.

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