Performance analysis of adaptive MMSE reception for DS-CDMA in flat Nakagami fading channels
نویسندگان
چکیده
An efficient method is derived in this paper to obviate the integral involved in the performance analysis of the minimum mean square error (MMSE) detector for direct-sequence code-division multiple-access (DS/CDMA) systems in fading environments. The new method is shown to significantly reduce the necessary computational load for the performance analysis of the MMSE detector. We then examine the behavior of the MMSE detector in flat Nakagami fading channels.
منابع مشابه
Performance Evaluation of Adaptive MRC-MMSE Multiuser Detector for DS-CDMA System in Rayleigh and Nakagami Channels
Among all the available multiple access techniques, CDMA has the unique feature that it allows sharing of the same channel by all active users. CDMA performance is degraded up to some extent by two phenomenon i.e. Multiple-access interference (MAI) and multipath distortion. In the multiuser adaptive receiver for direct sequence code division multiple access (DS_CDMA) system the performance of l...
متن کاملBit Error Performance for Asynchronous Ds Cdma Systems Over Multipath Rayleigh Fading Channels (RESEARCH NOTE)
In recent years, there has been considerable interest in the use of CDMA in mobile communications. Bit error rate is one of the most important parameters in the evaluation of CDMA systems. In this paper, we develop a technique to find an accurate approximation to the probability of bit error for asynchronous direct–sequence code division multiple–access (DS/CDMA) systems by modeling the multipl...
متن کاملA Robust Technique for Blind Multiuser CDMA detection in Fading Channels
This paper considers the blind multiuser reception problem for Direct Sequence Code Division Multiple Access (DS-CDMA) systems. A hybrid approach to the blind reception of linear multiple-input multiple-output (MIMO) channels is taken up. We consider the problem of blind detection of multiuser CDMA signals in a space time scenario. The channel is assumed to have a small scale flat fading behavi...
متن کاملPERFORMANCE ANALYSIS OF DPSK/DS-CDMA SIGNALS OVER NAKAGAMI RADIO FADING CHANNELS AT JORDAN UNIVERSITY OF SCIENCE AND TECHNOLOGY April 2000 PERFORMANCE ANALYSIS OF DPSK/DS-CDMA SIGNALS OVER NAKAGAMI RADIO FADING CHANNELS
PERFORMANCE ANALYSIS OF DPSK/DS-CDMA SIGNALS OVER NAKAGAMI RADIO FADING CHANNELS by Ali A. Jamous Chairman: Dr. Ibrahim Ghareeb Direct sequence (DS) based code division multiple access (CDMA) with differential phase shift keying (DPSK) modulation is an active area of research and has taken on a significant role in recent cellular and personal communication systems. Two basic problems are of maj...
متن کاملRake Reception with Maximal-ratio and Equal-gain Combining for Ds-cdma Systems in Nakagami Fading
We study coherent binary direct-sequence code division multiple access (DS-CDMA) systems operating over frequency-selective Nakagami fading channels. In particular a performance comparison between maximal-ratio combining (MRC) and equal-gain combining (EGC) RAKE receivers is considered. For interference limited systems, perfect MRC RAKE receivers can accommodate about 5m=(5m ? 1) more users tha...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- IEEE Trans. Vehicular Technology
دوره 49 شماره
صفحات -
تاریخ انتشار 2000