Packet data transmission with clash subtraction

Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via code word channels

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370342, H04J 1304, H04B 7216

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active

057646465

ABSTRACT:
A system for transmitting digital data messages between a plurality of stations using a common communications channel is disclosed. The data messages are assembled into data packets which include address and control information. The data packets are then transmitted from the stations over the common channel using appropriate data representative waveforms or modulation. A composite waveform representative of the data packets including potentially time overlapping data packets are received and processed to decode at least one packet. The waveform representative of the at least one decoded packet is reconstructed and subtracted from the received composite waveform to obtain a residual waveform. The residual waveform is then further processed to attempt to decode at least one further packet.

REFERENCES:
patent: 5048059 (1991-09-01), Dent
patent: 5063573 (1991-11-01), Langewellpott
patent: 5081651 (1992-01-01), Kubo
patent: 5151919 (1992-09-01), Dent
patent: 5164961 (1992-11-01), Gudmundson
patent: 5186764 (1993-02-01), Stiasny
patent: 5199047 (1993-03-01), Koch
patent: 5222080 (1993-06-01), Wang et al.
patent: 5297169 (1994-03-01), Backstrom et al.
patent: 5335250 (1994-08-01), Dent et al.
patent: 5343473 (1994-08-01), Cidon
patent: 5537397 (1996-07-01), Abramson
patent: 5557608 (1996-09-01), Calvignac
patent: 5615209 (1997-03-01), Bottomley
K. Giridhar et al., "A Blind Adaptive MAP Algorithm for the Recovery of Cochannel Signals," Proceedings of the Military Communications Conference, pp. 133-138.
M.J. Ready et al., "Demodulation of Cochannel FSK Signals Using Joint Maximun Likelihood Sequence Estimation," Proceedings of the Asilomar Conference, pp. 1412-1415, Nov. 1993.
U. Fawer et al., "Multiuser Reception for Trellis-Based Code Division Multiple Access Communications," Proceedings of the Military Communication Conference, pp. 977-981, Oct. 1994.
A.J. Viterbi, "Very Low Rate Convolutional Codes for Maximum Theoretical Performance of Spread-Spectrum Multiple-Access Channels," IEEE Jrnl Sel. Areas in Comm., vol. 8, No. 4, pp. 641-649, esp. section IV, May 1990.
M.K. Varanasi et al., "Near-Optimum Detection in Synchronous Code-Division Multiple-Access Systems," IEEE Trans. on Comm., vol. 39, No. 5, pp. 725-736, May 1991.
M.C. Phillips, "Acquisition in Spread Spectrum Multiple Access Communication Systems," M.S. Thesis, Univ. of Utah, esp. section 4.2.1, Jun. 1995.
T. Sugiyama et al., "Burst Mode Interference Cancellation for Superposed Transmission of SSMA-QPSK Signals and TDAM-QPSK Signals in Nonlinear Channels," Proc. GLOBECOM '93, vol. 3, pp. 1612-1616, Nov. 1993.

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