nonlinear serial interference cancellation

Ngày tải lên: 03/09/2012, 15:54

... successive interference cancellation in CDMA systems,” IEEE Transactions on Wireless Communications, vol 7, no 11, Article ID 4684589, pp 4128–4132, 2008 [7] J G Andrews, Interference cancellation ... length of the CP used, the interference due to users whose signals arrive earlier than the synchronization instant cannot be eliminated In such a case, interference cancellation needs to be employed ... interference cancellation for CDMA systems,” IEEE Transactions on Communications, vol 49, no 7, pp 1250– 1258, 2001 [9] W T Sang, K B Letaief, and R S Cheng, “Combined coding and successive interference...

Ngày tải lên: 21/06/2014, 09:20

... that for a horizontally polarized interference, aiV = (i = 1, 2, , N), whereas for a vertically polarized interference, aiH = (i = 1, 2, , N), and for LHCP interference, aiV = ja1H (i = 1, ... arrays The spatial nulling and polarization properties are combined to obtain a superior interference cancellation performance for multiple jammers with distinct polarizations Unlike single MVDR ... preserving the RHCP GPS signals It is noted that an LHCP interference is immediately removed when using RHCP antennas Further, a linearly polarized interference can be easily mitigated when the corresponding...

Ngày tải lên: 21/06/2014, 22:20

... nonpunctured PA and IA receiver performances For each approach, we perform four iterative cancellation stages (or joint cancellation stages in the case of IA) thus giving a fair comparison, in terms of ... r = 0.32 for the K = and K = 15 systems, respectively CONCLUSION In this paper, two turbo interference cancellation receivers are discussed and are divided into the MMSE front-end turbo space-time ... 1064–1070, Geneva, Switzerland, May 1993 [10] A R Muller and B J Huber, “Iterated soft decision interference cancellation for CDMA,” in Broadband Wireless Communications, M Luise and S Pupolin, Eds.,...

Ngày tải lên: 21/06/2014, 23:20

... and termi- nals • PHY layer interference cancellation at the AP taking into account the asynchronous interference model induced by the MAC layer B3 τ3 INTERFERENCE CANCELLATION Since training ... cochannel interference from a coexisting system was also accounted for It was shown that the developed semiblind interference cancellation techniques are essential for addressing the asynchronous interference ... structure of the interference in these scenarios is similar to the one illustrated in Figure Preamble (training) Information Desired signal Tt τ1 Interference τ2 B1 PROBLEM FORMULATION Interference...

Ngày tải lên: 22/06/2014, 19:20

... 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 ... gk,k nk [n], yk (9) interference is entirely removed, and the carrier phase is perfectly compensated Initial phase recovery yK [n] Decoding Estimation of gK, Interference cancellation Decoding ... to use initial frequency estimations before interference cancellation In this case, the estimation accuracy is limited due to the very low signal-to-interferenceplus-noise ratio (unless using...

Ngày tải lên: 22/06/2014, 19:20

... proposed interference cancellation schemes can significantly improve bit error rate (BER) performance of the SC-CP system with the insufficient GI, and especially, the proposed interference cancellation ... is defined as CIBI = Rcp H1 Tcp (13) PROPOSED INTERFERENCE CANCELLATION SCHEME AT TRANSMITTER In this section, we propose a simple interference cancellation scheme, which is performed in the ... (equalizer) in Figure (1) Linear equalization PROPOSED INTERFERENCE CANCELLATION SCHEME AT RECEIVER In this section, we propose interference cancellation schemes at the receiver Unlike the proposed...

Ngày tải lên: 22/06/2014, 19:20

... (B.11) (B.5) Second, we show that the resulting interference power of an interference canceller with kW1 , given by |c + dkW1 |2 , is larger than the interference power with DM-only reception, given ... modelled as a linear stationary Gaussian channel with memory and coloured interference (correlated in time) In general, interference originates from an arbitrary number S of sources, which typically ... suggests a linear combination of Y1 and Y2 as estimator, which essentially corresponds to linear interference cancellation depicted in Figure and described by Y (k) = Y1 + kY2 4.1 Maximum likelihood...

Ngày tải lên: 22/06/2014, 19:20

... interest, say of user 1, is the user to be acquired in the presence of intersymbol interference (ISI) and multiple-access interference (MAI) The information about the in-cell and inter-cell interferers ... linear interference suppression in the presence of dynamic fading,” IEEE Transactions on Communications, vol 49, no 4, pp 635–645, 2001 [17] M L Honig and J S Goldstein, “Adaptive reduced-rank interference ... receiver is developed in Section Section 3.1 describes briefly the ideal MMSE solution for DS-CDMA interference suppression In Section 3.2, the FLC-LMS and FLCRLS algorithms of the MMSE CDMA receiver...

Ngày tải lên: 22/06/2014, 23:20

... a multiple-cell deployment, interference is generated both from users in surrounding cells (intercell interference) as well as from users in the own cell (intracell interference) The PIC algorithm ... achievable even so for interference cancellation base station architectures of rather limited complexity This is primarily due to the known nature of the inherent intracell interference generated ... robustness of realistic system implementations This paper investigates system-level performance of interference cancellation for the WCDMA uplink [11] by means of simulations and measurements from a prototype...

Ngày tải lên: 23/06/2014, 01:20

... of the power line interference removal algorithm Chapter Power Line Interference Cancellation: Algorithm Design 2.1 Introduction As briefed in the previous chapter, power line interference may ... harmonic, and M is the number of harmonics present in the interference An ideal interference cancellation algorithm should eliminate the interference p(n), while perfectly preserving the neural ... the accuracy of all subsequent analyses 1.2 1.2.1 Thesis Motivation Power Line Interference Cancellation Power line interference is usually non-stationary, and can vary in frequency, amplitude...

Ngày tải lên: 09/09/2015, 08:12

... of such cancellation schemes: serial and parallel interference cancellation Serial Interference Cancellation (SIC) This technique is often also referred to as successive interference cancellation ... Code Division Multiple Access SD Selection Diversity SIC Serial or Successive Interference Cancellation SNR Signal to Noise Ratio S/P Serial to Parallel SS Spread Spectrum TACS Total Access Communications ... IC Interference Cancellation ICI Inter-chip Interference IDFT Inverse Discrete Fourier Transform IFFT Inverse Fast Fourier Transform ISDN Integrated Services Digital Network ISI Inter-symbol Interference...

Ngày tải lên: 26/09/2015, 11:07

... Detector 22 2.4 Interference Cancellation Schemes 24 2.4.1 Interference Cancellation Basic Building Block 24 2.4.2 Serial Interference Cancellation (SIC) 26 ii 2.4.3 Parallel Interference Cancellation ... improved successive interference cancellation (ISIC) scheme that is comprised of a selective parallel interference cancellation (PIC) integrated into a successive interference cancellation (SIC) ... SIC Serial (or successive) Interference Cancellation PIC Parallel Interference Cancellation BER Bit-Error Rate AWGN Additive White Gaussian Noise SSS Spread Spectrum Signals SIR Signal-to-Interference...

Ngày tải lên: 09/10/2015, 11:18

... mitigate interference of various origins, including inter-symbol interference and co-channel interference An effort has been taken in this thesis to present an overview of interference cancellation ... Finite Impulse Response GSM Global System for Mobile IC Interference Cancellation IFFT Inverse Fast Fourier Transform IIC Iterative Interference Cancellation iid Independent and Identically Distributed ... ITERATIVE INTERFERENCE CANCELLATION RECEIVER FOR STBC MULTIRATE MULTIUSER SYSTEMS 71 5.1 Introduction 71 5.2 Equal Rate System 71 5.2.1 System Model 72 5.2.2 Iterative Interference Cancellation...

Ngày tải lên: 08/11/2015, 16:39

... subtractive interference cancellation detectors below 3.3.1 Successive Interference Cancellation The successive interference cancellation (SIC) detector takes a serial approach to interference cancellation ... 3.2.3 Adatpive MMSE Detector 25 3.3 Substractive Interference Cancellation 27 3.3.1 Successive Interference Cancellation 28 3.3.2 Parallel Interference Cancellation 30 3.4 PIC Scheme Based on the ... Detection Schemes 3.3.2 Parallel Interference Cancellation An alternative to SIC is the parallel interference cancellation (PIC) detector, which carries out the interference cancellation in parallel...

Ngày tải lên: 28/11/2015, 13:26

... intercell interference at the receiver side without the need of high complex intercell interference management schemes from the network side This paper presents iterative intercell interference cancellation ... intercell interference cancellation (ICIC) scheme was already proposed in [18] by taking into account the hard decisions from the demodulator to reconstruct the signal and cancel the intercell interference ... used for iterative cancellation of the multiple access interference (MAI) [19] It is possible to extend this principle to a cellular MC-CDMA downlink to cancel the intercell interference with...

Ngày tải lên: 22/06/2014, 19:20

... the left-most vertical line Coherent combining without interference (c) A Coherent combining under interference (d) Desired signal in 2D Interference in 2D (e) (f) Figure 3: Illustration of coherent ... user, (b) energy samples from TH-IR interference, (c) coherent combining of energy samples without interference, (d) coherent combining of energy samples with interference, (e) energy image of ... energy image of the interference gives the time index of the first arriving signal energy If the interference follows a different TH pattern, intuitively the energy matrix of the interference does...

Ngày tải lên: 22/06/2014, 22:20

Ngày tải lên: 06/09/2012, 15:56

... Cellular phone interference with the operation of mechanical ventilators Crit Care Med 2004, 32:928-931 Barbaro V, Bartolini P, Benassi M, Di Nallo AM, Reali L, Valsecchi S: Electromagnetic interference ... Nelson LS: Cellular phone interference as a cause of acute epinephrine poisoning Ann Emerg Med 2005, 46:298-299 Anonymous: Wireless communication devices and electromagnetic interference ECRI's updated ... incidents (P = 0.67) Discussion The present study demonstrates two new findings in the field of interference by mobile phones on medical equipment First, the 2.5-generation mobile communication...

Ngày tải lên: 25/10/2012, 10:35

... page into oblivion It’s my imaginary world and I love it That is why I became a serial killer Blink Yes, I said Serial Killer (I capitalised for emphasis - a little writing trick) Actually, my ... of serial killer clay but it’s a really good hook for a book Imagine the ethics of publishing if I don’t get caught An eyewitness account of twelve unsolved murders written by the killer A Serial ... 2 DIARY OF A SERIAL KILLER Other Titles by this Author The Final Song Rewind Electric Goanna Dreams Copyright...

Ngày tải lên: 06/11/2012, 16:14