Joint detection with coherent receiver antenna diversity in CDMA mobile radio systems

Near-Instantaneously Adaptive HSDPA-Style OFDM Versus MC-CDMA Transceivers for WIFI, WIMAX, and Next-Generation Cellular Systems

“…9 and then follow the BER curve of the 64-QAM mode. However, Bfull-user[ AMC-CDMA defined as the system supporting U ¼ 16 users with the aid of a spreading factor of G ¼ 16 and employing the MMSE-BDFE joint detection (JD) receiver [216] exhibits a slightly higher average BER, than the target of B t ¼ 10 À3 due to the residual MUI of the imperfect joint detector. Since we derived the optimum switching levels based on a single-user system, the switching levels are no longer optimum, when residual MUI is present.…”

“…Since MC-CDMA facilitates Rake reception, the performance of single-user MC-CDMA is characterised by that of an ideal Rake receiver. In a multiuser scenario joint-detection assisted MC-CDMA employing the minimum mean squared error block decision feedback equalizer (MMSE-BDFE) based MUD [216] is capable of approaching the single-user performance.…”

Burst-by-burst adaptive joint-detection CDMA/H.26L based wireless video telephony using TTCM and LDPC codes

“…The Minimum Mean Square Error Decision Feedback Equalizer (MMSE-DFE) based Joint Detector (JD-MMSE-DFE) is invoked in the proposed Code Division Multiple Access (CDMA) [13] ACM scheme. Specifically, joint detection [13,14] receivers are derivatives of the well-known single-user equalizers, which were originally designed for equalizing signals that have been corrupted by Inter-Symbol Interference (ISI) due to the multipath effect of wireless channels. The JD-MMSE-DFE scheme constitutes a powerful approach to mitigating the effects of both Multi-User Interference (MUI) and ISI [13], while at the same time improving the system's performance by benefiting from the multipath diversity gain provided by the dispersive channel.…”

Single-carrier space-time trellis and space-time block coding for dispersive Rayleigh fading channels

“…In our proposed system the Minimum Mean Square Error Decision Feedback Equalizer (MMSE-DFE) based Joint Detection (JD) scheme [12] is used, which constitutes a widely known powerful approach for mitigating the effects of both multi-user interference and ISI. However, in this particular application the JD scheme will not be employed for detecting multiple users, it rather will be used for mitigating the effects of employing multiple transmitters and the channelinduced ISI.…”