Interference cancellation schemes for STBC multiuser systems

Ngày tải lên: 03/09/2012, 15:54

... doi:10.1186/1687-1499-2011-132 Cite this article as: Chatzinotas and Ottersten: Interference mitigation techniques for clustered multicell joint decoding systems EURASIP Journal on Wireless Communications and ... factor For high a factors, RDMA performance converges to interference alignment, whereas for low a factors RDMA performance degrades even beyond the cochannel...

Ngày tải lên: 20/06/2014, 22:20

... Thus, the channel measurement reporting for channel adaptation mechanism (e.g., the power control and the adaptive modulation and coding) is usually carried out frame-by-frame basis If the channel ... is assumed that the channel state for a CR transmitter-receiver pair does not vary during a frame For pilot signal, a total of M × L OFDM symbols are transmitted in a fra...

Ngày tải lên: 21/06/2014, 05:20

... solutions for one-way cellular relaying In one scheme, which we call one-way shared relaying, the shared relay model as described in Section 2.2 is utilized The basis for this scheme is the shared relay ... from the jth MS of the ith cell to the shared relay and assume reciprocal channel so that the channel from the relay to the MSs in the the sectors o...

Ngày tải lên: 21/06/2014, 08:20

... in Section Simulation results are shown in Section 5, and Section concludes the paper System Model Figure shows the block diagram of the quasi-synchronous BS -CDMA system Consider a BS -CDMA system ... message, the receiver synchronizes to the beginning of the signal of this user We refer to the user to which the receiver is synchronized as the reference user, an...

Ngày tải lên: 21/06/2014, 09:20

... computing power for detection In this section, we present the system model for this underdetermined MIMO system and introduce our PVC -MIMO detection 2.1 System Model Consider a MIMO system with ... Prevoting Cancellation-Based MIMO Detection For underdetermined MIMO systems, since a sufficiently low complexity and a near optimal performance cannot be obtained by ex...

Ngày tải lên: 21/06/2014, 11:20

... broadcast channels,” IEEE Transactions on Information Theory, vol 54, no 3, pp 1086–1107, 2008 ´ [26] M Eslami and W A Krzymien, “Scheduling for MIMO broadcast channels with linear receivers and partial ... Based on (12) and (15), the optimum L value depends on M, N, ρ and K For a system with specific number of Tx and Rx antennas, L can be evaluated for different val...

Ngày tải lên: 21/06/2014, 17:20

... May 2001 J Wang and M Amin, GPS interference cancellation performance for single and multiple MVDR beamformers,” in Proceedings of the 40th Asilomar Conference on Signals, Systems and Computers, ... represents the interference cancellation performance upon convergence with adaptive single MVDR beamforming method Figure 3(b) depicts the performances of all beamformer...

Ngày tải lên: 21/06/2014, 22:20

... to ITU-R Detailed performance evaluation results of these schemes are provided In addition to the aforementioned evaluations of conventional schemes, new evaluation results of frequency sharing ... NEW ANALYSIS RESULTS 5.1 Ideal ABS approach 5.1.1 Basic concept Adaptive beamforming can provide an efficient means of interference mitigation Figure 10 shows an example of a...

Ngày tải lên: 21/06/2014, 23:20

... n[n], (5) J P Millerioux et al Interference cancellation Initial phase recovery y1 [n] Decoding Estimation of g1, Interference cancellation (m) dl [n] The interference cancellation block output at ... Decoding (m) dk [n] Estimation of gk, Interference cancellation (m+1) yk [n] In the case of perfect channel estimation and interfering symbol decisions, we get To beam...

Ngày tải lên: 22/06/2014, 19:20

... the interferences without any reduction of the transmission rate, while they somewhat increase the complexity of the receiver 4.1 Interblock interference cancellation In the block transmission schemes, ... proposed interference cancellation schemes can significantly improve bit error rate (BER) performance of the SC-CP system with the insufficient GI, and especially, the propo...

Ngày tải lên: 22/06/2014, 19:20

... bandwidth of MT -CDMA is comparable with that of DS- CDMA scheme Table 2.1 Features of various CDMA systems DS- MC -CDMA MC -DS- CDMA MT -CDMA of N N N Processing gain G G G GN TsN / G TsN TsN CDMA Number ... APIC receivers for synchronous MC -DS- CDMA 5.1 BER Performance of various receivers in Rayleigh fading channel at SNR of 20dB for synchronous MC -DS- CDMA 5...

Ngày tải lên: 26/09/2015, 11:07

... IMPROVED CHANNEL ESTIMATION SCHEMES FOR DS- CDMA RAKE RECEIVER WITH THE USE OF MULTIUSER INTERFERENCE CANCELLER TIE LOK TIING (B Eng (Hons.), National University of Singapore) A THESIS ... throughout the rest of the thesis Chapter gives the principles of the wireless CDMA transmitter and receiver Furthermore, the RAKE receiver and the...

Ngày tải lên: 09/10/2015, 11:18

... propose the improved successive interference cancellation (ISIC) scheme that is comprised of a selective parallel interference cancellation (PIC) integrated into a successive interference cancellation ... PIC and cross correlation SICRM 4.12 Pipelined Successive Interference Cancellation (PSIC) with “pipelines” 4.13 NMB and NAB comparison between SIC and PS...

Ngày tải lên: 09/10/2015, 11:18

... STBC and DSTBC schemes for three transmit antennas 2.8 The BER performance comparison of STBC and DSTBC schemes for four transmit antennas 3.1 Linear filter for MMSE 3.2 Linear filter model for ... STBC MMSE and LSE-RLS schemes for multirate multiuser systems using 8PSK and QPSK Modulations 4.11 The BER performance of STBC MMSE and LSE-RLS schemes for multirate...

Ngày tải lên: 08/11/2015, 16:39