Asymptotic performance of blind antenna array receiver algorithms for CDMA
نویسندگان
چکیده
This paper considers the performance of four channel identi cation techniques for code division multiple access (CDMA) antenna array receivers. These techniques are based on the assumption that the interference is spatially white: they provide a spatial \matched lter" solution. Perturbation formulae are presented for estimating the attainable signal to interference and noise ratios (SINR) for these techniques. Some simulation results are also presented to compare the convergence performance of these methods.
منابع مشابه
Blind reception of multicarrier DS-CDMA using antenna arrays
In this paper, an asynchronous, multicarrier directsequence code-division multiple-access (DS-CDMA) array receiver is proposed based upon blind, composite channel vector estimation. Due to the fact that the combined effect of all received paths is estimated, the total number of paths can be greater than the number of antennas in the receiver array. Furthermore, the proposed approach is not limi...
متن کاملBlind multiuser detection for MC-CDMA with antenna array
We investigate the characteristics of the received signal as trilinear model for multi-carrier code division multiple access (MC-CDMA) system with antenna array, and propose a blind multiuser detection method for MC-CDMA system in this paper. The trilinear-based multiuser detection algorithm (Trilinear-MUDE) that we presented exploits the versatile diversity in MC-CDMA system while require neit...
متن کاملPerformance of antenna array receiver algorithms for CDMA
This paper considers a number of algorithms that could be used for antenna array receivers in the mobile–to–base station link of a cellular code division multiple access (CDMA) system. Two classes of algorithms are considered: 1) algorithms that estimate spatially matched filter solutions and 2) adaptive techniques for suppressing interference. In the simulations that were conducted, the “match...
متن کاملAdaptive Beamforming Algorithm for Antenna Array CDMA Systems in Multipath Fading Channels Using Modified Bussgang Algorithm
In this paper a blind algorithm for combining Rake receiver and beamformer is introduced. It is shown that a blind adaptive beamforming is possible by directly utilizing bussgang algorithm. But these algorithms may converge to local minima therefore some modification is applied for decreasing of the probability of convergence to local minima. It is demonstrated through the various computer simu...
متن کاملBER Enhancement of CDMA system using Broadside Antenna array and SDMA in Rayleigh Fading Channel environment
Code Division Multiple Accesses (CDMA), one of the effective and efficient technologies, is used in 2nd generation (2G), 3rd generation (3G) wireless and becomes one of potential candidates for the physical layer of 4G mobile systems with the aim of improving cell capacity communication. The paper presents the CDMA system with Broadside antenna array is proposed for a multipath fading channel. ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1997