Quasi-synchronous code-division multiple access with high-order modulation.

Quasi-synchronous code-division multiple access with high-order modulation.

Code-division multiple access (CDMA) is a multiplexing technique where a number of users simultaneously access a transmission channel by modulating and spreading their signals with preassigned codewords. This paper studies the performance of CDMA signals with orthogonal (Walsh-Hadamard) codewords an...

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Vydáno v:IEEE Transactions on communications 49, 7 (2001).
Hlavní autor: Van Houtum, W.J
Médium: Článek
Jazyk:English
Témata:
BER.
CDMA.
M-PSK.
M-QAM.
M-level phase-shift keying.
M-level quadrature amplitude modulation.
Walsh-Hadamard code set.
Walsh-Hadamard codewords.
Bit-error rate.
Cable TV networks.
High-order modulation.
Interference noise.
Multiplexing technique.
Performance.
Preassigned codewords.
Quasi-synchronous code-division multiple access.
Received user signal.
Return channel.
Synchronization errors.
Transmission channel.