Frequency Hopping Rate and the Diversity of a Fading Channel

نویسندگان

  • Do-Sik Yoo
  • Wayne E. Stark
  • Victor W. Cheng
چکیده

A method is presented to determine the diversity gain achieved by increasing the hopping rate in a frequency hopped spread spectrum system using frequency mean square correlation (FMSC). In particular, it is demonstrated that the detailed shape of the delay power profile of a given channel does not play a fundamental role in the determination of the performance saturation point given the FMSC of the channel. Keywords— Frequency Mean Square Correlation, Frequency Hopped Spread Spectrum, Frequency Hopping Rate

برای دانلود 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

BER of Fast Frequency Hopping Spread Spectrum Over Flat Rayleigh Fading Channel in Hostile Jammers

This paper demonstrates the execution and performance of frequency hopping spread spectrum system employing noncoherent frequency shift keyed (NCFSK) modulation. Fast frequency hopping is exploited as a diversity technique over flat Rayleigh fading channel with partial band noise jamming and additive white noise Gaussian (AWGN). The potentiality of the aforementioned system has then, ascertaine...

متن کامل

Performance comparison of FFH and MCFH spread-spectrum systems with optimum diversity combining in frequency-selective Rayleigh fading channels

In this letter, the performance of frequency-hopping spread-spectrum systems employing noncoherent reception and transmission diversity is analyzed for frequency-selective Rayleigh fading channels. Two different types of transmission diversity systems, a fast frequency-hopping (FFH) system and a multicarrier frequency-hopping (MCFH) system, are investigated. In order to combine received signals...

متن کامل

Improved Performance of Multiuser System Using Combined Diversity with Nagakami Fading Channel

In wireless communication security, Signal to Noise Ratio (SNR) and Bit Error Rate (BER) are the important parameters to be improved. Frequency Hopping Spread Spectrum (FHSS) combined with Nagakami Fading Channel (NFC) and combined diversity techniques have been proposed to improve the performance of multi-user system. Combined diversity is nothing but a combination of Maximal Ratio Combining (...

متن کامل

Space-Time Transmit Diversity Combined with Frequency-domain Equalization for Single-carrier Transmission

In a frequency-selective fading channel, the transmission performance of single-carrier (SC) transmission significantly degrades due to severe inter-symbol-interference (ISI). In this paper, the joint use of space-time transmit diversity (STTD), receive antenna diversity and frequency-domain minimum mean square error (MMSE) equalization in SC transmission is studied. Space-time encoding and dec...

متن کامل

Frequency-domain Equalization for Antenna Diversity Reception of Ds-cdma Signals

A coherent rake combiner is employed as the channel matched filter in a DS-CDMA mobile radio. However, as the number of propagation paths increases, the coherent rake receiver incurs a serious degradation in the bit error rate (BER) performance due to severe inter-path interference (IPI). In this paper, frequency-domain equalization employed in multi-carrier code division multiple access (MC-CD...

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

برای دانلود 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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2001