Text Book on Digital Communication Systems

ABOUT THE TEXT BO The combination of MIMO and OFDM is efficient technologies for the future wireless networks. Since the MIMO OFDM ensure more spectrum efficiency and high diversity gain. However, the performance of MIMO OFDM combination can be further enhanced if adequate algorithms are used. The MIMO communication system is an antenna methodology, which employs multiple transmitter and multiple receivers over the channel. The MIMO OFDM model uses dimensional difference by having multiple antennas at transceiver model of OFDM system, so that to improve the system behavior. The MIMO system delivers a high efficiency and link reliability facilitating widely increase in the throughput of the data. The OFDM system splits the high rate series of data bits into parallel streams with low rate data bits. The orthogonality of the sub carrier is the significant concept in OFDM system, which is orthogonal and permits concurrent transmission of series of SCs over fitted frequency space. The OFDM system is efficiently valid in digital terrestrial multimedia broadcast, digital subscriber line broadband internet access, LTE, 4G mobile broadband communication and wireless network .