Title :
Adaptive modulation and coding for generalized fading channels
Author :
Djordjevic, Ivan B. ; Djordjevic, Goran T.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Arizona, Tucson, AZ, USA
Abstract :
The adaptive modulation and coding can provide robust and spectrally efficient transmission over generalized ¿-¿ (or generalized gamma) wireless fading channels. The key idea of our proposal is to transmit the low-density parity-check (LDPC) encoded sequence over the generalized fading channel, feedback the channel state information of by an RF feedback channel, and adapt the powers and rates of so that the channel capacity is maximized. The optimal power adaptation policy maximizing the channel capacity is derived. We show that deep fades can be tolerated with proposed scheme.
Keywords :
adaptive codes; adaptive modulation; channel capacity; fading channels; feedback; parity check codes; RF feedback channel; adaptive coding; adaptive modulation; channel capacity; channel state information; encoded sequence; generalized gamma wireless fading channel; low-density parity-check code; optimal power adaptation policy; Channel capacity; Fading; Modulation coding; Parity check codes; Power system modeling; Radio frequency; Receiving antennas; Transmitters; Transmitting antennas; Wireless communication; Adaptive coding; Adaptive modulation; Generalized α-μ wireless fading channels; Low-density parity-check (LDPC) codes;
Conference_Titel :
Telecommunication in Modern Satellite, Cable, and Broadcasting Services, 2009. TELSIKS '09. 9th International Conference on
Conference_Location :
Nis
Print_ISBN :
978-1-4244-4382-6
Electronic_ISBN :
978-1-4244-4383-3
DOI :
10.1109/TELSKS.2009.5339505