OFDM Advantages and Disadvantages
The major advantage of OFDM is its robustness against multi path propagation. Thus, it is suitable to be implemented in wireless environ...
Rabu, 12 Januari 2011
Orthogonal Frequency Division Multiplexing (OFDM)
O rthogonal F requency D ivision M ultiplexing ( OFDM ) is a multicarrier modulation technique. OFDM provides high bandwidth efficienc...
Selasa, 11 Januari 2011
Using SC-FDMA in LTE
Single carrier frequency division multiple access (SC-FDMA) has been adopted by the third generation partnership project (3GPP) for u...
Minggu, 09 Januari 2011
Turbo-Decoder
The turbo code decoder is an iterative Maximum A posteriori (MAP) algorithm. MAP algorithms use a Bayesian analysis of the channel t...
Turbo-Encoder
Turbo code encoders are a concatenation of systematic encoders referred to as constituent codes. (Systematic encoders pass both uncod...
What's the Turbo-code ?
Turbo coding is a forward error correction (FEC) scheme. Iterative decoding is the key feature of turbo codes. Turbo codes consist...
Senin, 03 Januari 2011
Frequency Concepts in GSM
An MS communicates with a BTS by transmitting or receiving radio waves, which consist of electromagnetic energy. The frequency of a ra...
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