Equal-gain diversity receiver performance in wireless channels

نویسندگان

  • Annamalai Annamalai
  • Chintha Tellambura
  • Vijay K. Bhargava
چکیده

Performance analysis of equal-gain combining (EGC) diversity systems is notoriously difficult only more so given that the closed-form probability density function (pdf) of the EGC output is only available for dual-diversity combining in Rayleigh fading. In this paper, a powerful frequency-domain approach is therefore developed in which the average error-rate integral is transformed into the frequency domain, using Parseval’s theorem. Such a transformation eliminates the need for computing (or approximating) the EGC output pdf (which is unknown), but instead requires the knowledge of the corresponding characteristic function (which is readily available). The frequency-domain method also circumvents the need to perform multiple-fold convolution integral operations, usually encountered in the calculation of the pdf of the sum of the received signal amplitudes. We then derive integral expressions for the average symbol-error rate of an arbitrary two-dimensional signaling scheme, with EGC reception in Rayleigh, Rician, Nakagami, and Nakagamifading channels. For practically important cases of secondand third-order diversity systems in Nakagami fading, both coherent and noncoherent detection methods for binary signaling are analyzed using the Appell hypergeometric function. A number of closed-form solutions are derived in which the results put forward by Zhang are shown to be special cases.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Outage Probability Bound and Diversity Gain for Ultra-Wideband Multiple-Access Relay Channels with Correlated Noises

In this paper, Ultra-wideband (UWB) multiple access relay channel with correlated noises at the relay and receiver is investigated. We obtain outer and inner bounds for the IEEE 802.15.3a UWB multiple access relay channel, and also, a diversity gain bound. Finally, we evaluate some results numerically and show that noise correlation coefficients play important role in determining relay position.

متن کامل

A Blind Hammerstein Diversity Combining Technique for Flat Fading Channels

Diversity combining techniques play an important role in combating the destructive effects of channel fading in wireless communication systems. In this work we present a blind diversity combining technique for Rayleigh flat fading channels based on Hammerstein type filters. We show that the performance of this technique is very close to ideal MRC system which is accepted as an optimum receiver ...

متن کامل

Performance Evaluation and Simulation of Binary Signalling with EGC in Generalized Flat-Fading Channels

In this paper, a performance investigation of Equal Gain Combining (EGC) multichannel receiver over Generalized Flat-fading channels is presented. The Generic-Gamma fading model has been used here which is versatile enough to represent most of the short term fading conditions as well as long term Shadowing. The Average Bit Error Rate (ABER) has been evaluated for Coherent and Differentially-Coh...

متن کامل

Performance Evaluation of Equal Gain Diversity Systems In Fading Channels

Next generation wireless systems are being designed to provide ubiquitous broadband link access to information infrastructure. Diversity techniques play a vital role in supporting such high speed connections over radio channels by mitigating the detrimental effects of multiuser interference and multipath fading. Equal gain combining (EGC) diversity receiver is of practical interest because of i...

متن کامل

Performance Analysis of Combining Techniques Used In MIMO Wireless Communication System Using MATLAB

Abstract: In wireless communication diversity techniques are very powerful to mitigate the fading impairment. In presence of receiver side how do we use effectively the information from the entire antenna to demodulate the data? This paper presents the equal gain combining and maximal ratio combining techniques used in MIMO wireless communication system. The analysis of the SNR and BER after th...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • IEEE Trans. Communications

دوره 48  شماره 

صفحات  -

تاریخ انتشار 2000