Title :
A method of optimizing the de-Rate Matching and demodulation in LTE based on GPP
Author :
Zhao Guanghui ; Niu Kai ; He Lifeng ; Huang Jinri
Author_Institution :
Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
Recently, General Purpose Processor (GPP) has been applied to telecommunication field. The paper provides a method of optimizing the de-Rate Matching (RM) and demodulation for Long Term Evolution (LTE) system based on GPP. Multi kinds of code rates are supported in LTE. BPSK, QPSK, 16QAM and 64QAM are configurable for modulation. LTE system supports high peak rate with a low processing latency. So optimizing the demodulation and Rate Matching is necessary for the system implementation. A new scheme for Rate Matching is proposed, and the demodulation is optimized using Single Instruction Multi Data (SIMD).
Keywords :
Long Term Evolution; demodulation; microprocessor chips; optimisation; parallel processing; quadrature amplitude modulation; quadrature phase shift keying; BPSK; GPP; LTE; Long Term Evolution; QAM; QPSK; RM; SIMD; demodulation; derate matching; general purpose processor; single instruction multidata; Antennas; Bandwidth; Demodulation; Optimization; Table lookup; Telecommunications; Demodulation; GPP; LTE; Rate Matching; optimize;
Conference_Titel :
Communications and Networking in China (CHINACOM), 2012 7th International ICST Conference on
Conference_Location :
Kun Ming
Print_ISBN :
978-1-4673-2698-8
Electronic_ISBN :
978-1-4673-2697-1
DOI :
10.1109/ChinaCom.2012.6417599
