Title :
On hard and soft detection of space-time block codes by a novel soft output sphere decoder
Author :
Vigato, Alberto ; Benvenuto, Nevio ; Tomasin, Stefano ; Vangelista, Lorenzo
Author_Institution :
Dept. of Inf. Eng., Univ. of Padova, Padova, Italy
Abstract :
A new soft detector for space-time block codes (STBCs) is proposed, which is claimed to be more efficient than existing techniques. This tool has been used to compare four STBCs: 1) Alamouti, 2) rotated and scaled Alamouti, 3) Golden and 4) tilted QAM. We evaluate the performance in uncoded and low-density parity-check coded (LDPC) scenario and we stress the difference between the two cases.
Keywords :
block codes; decoding; parity check codes; space-time codes; LDPC; low-density parity-check coded; soft detector; soft output sphere decoder; space-time block codes; AWGN; Block codes; Decoding; Detectors; Lattices; MIMO; Parity check codes; Quadrature amplitude modulation; Receiving antennas; Stress; LDPC; STBC; soft detection; sphere decoder;
Conference_Titel :
Ultra Modern Telecommunications & Workshops, 2009. ICUMT '09. International Conference on
Conference_Location :
St. Petersburg
Print_ISBN :
978-1-4244-3942-3
Electronic_ISBN :
978-1-4244-3941-6
DOI :
10.1109/ICUMT.2009.5345538
