Square-QAM adaptive modulation/TDMA/TDDsystems using modulation level estimation with Walsh function

Electronics Letters

Volumn 31, Issue 3, 1995, Pages 169-171

  Otsuki, S ^a   Sampei, S ^a   Morinaga, N ^a  

^a OSAKA UNIVERSITY   (Japan)

Author keywords

Mobile communication systems; Time division multiple access

Indexed keywords

AMPLITUDE MODULATION; COMPUTER SIMULATION; FADING (RADIO); OPTIMIZATION; PHASE SHIFT KEYING; STATISTICAL METHODS; TIME DIVISION MULTIPLEXING; WALSH TRANSFORMS;

MAXIMUM LIKELIHOOD ESTIMATION; MODULATION LEVEL ESTIMATION; QUADRATURE AMPLITUDE MODULATION; TIME DIVISION DUPLEX; TIME DIVISION MULTIPLE ACCESS; WALSH FUNCTIONS;

MOBILE TELECOMMUNICATION SYSTEMS;

EID: 0029632448     PISSN: 00135194     EISSN: None     Source Type: Journal    
DOI: 10.1049/el:19950129     Document Type: Article

References (4)

1. WEBB, W.T.: ‘QAM: The modulation scheme for future mobile radio communications’, Electron. Commun. Eng. J., August 1992, pp. 167-176
2. SAMPEI, S., MORIYAMA, E., SASAOKA, H., KINOSHITA, N., HIRAMATSU, K., INOGAI, K., and HONMA, K.: ‘Field experiments on a I6QAM/TDMA system for land mobile communications’, Electron. Lett., 1994, 30, (3), pp. 185-186
3. ADACHI, F., and SAWAHASHI, M.: ‘Performance analysis of various 16 level modulation schemes under Rayleigh fading’, Electron. Lett., 1992, 28, (17), pp. 1579-1581
4. SUZUKI, T., SAMPEI, S., and MORINAGA, N.: ‘Estimation of instantaneous delay spread and E(δ)/N0 in adaptive modulation scheme’. IEICE Spring Conf. '94, March 1994, Paper B-375