A study on MC-CDMA Site-diversity under shadowing environment

نویسندگان

  • Takamichi INOUE
  • Shinsuke TAKAOKA
  • Fumiyuki ADACHI
چکیده

Abstract The site-diversity can be applied to multicarrier-CDMA (MC-CDMA) to improve the bit error rate (BER) performance for a user with weak signal power, resulting in the increased link capacity. In this paper, downlink capacity under shadowing environment is considered when base stations involved in site-diversity operation are determined based on average received power. The impacts of path loss exponent and standard deviation of shadowing loss on the site diversity effect are evaluated by computer simulation.

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

Frequency-Domain Equalization for MC-CDMA Downlink Site Diversity and Performance Evaluation

Similar to direct sequence code division multiple access (DS-CDMA), site diversity can be applied to a multicarrier-CDMA (MCCDMA) cellular system to improve the bit error rate (BER) performance for a user with weak received signal power, thus resulting in an increased link capacity. In this paper, the downlink site diversity reception using frequency-domain equalization based on minimum mean sq...

متن کامل

MC−CDMA VERSUS OFDMA IN CELLULAR ENVIRONMENTS (TueAmOR3)

In this paper, two candidates for a next generation (4G) downlink system in a multi−cell environment are studied in respect to their error performance. We investigate on the one hand, an orthogonal frequency division multiplexing (OFDM) based multiple access scheme (OFDMA), and on the other hand, a multi−carrier code division multiple access (MC−CDMA) scheme. The studies of both transmission sc...

متن کامل

Downlink site diversity with frequency-domain equalization for DS-CDMA cellular systems

Abstract In DS-CDMA high speed wireless signal transmissions, the transmission performance degrades due to frequency selective fading. The use of frequency-domain equalization (FDE) can significantly improve the transmission performance. However, the local average received signal power slowly varies due to distance-dependent path loss and shadowing loss according to the movement of a mobile use...

متن کامل

Error Performance for MC-CDMA and OFDMA in a Downlink Multi-Cell Scenario

This paper studies the error performances of two different 4G downlinks in a multi-cell environment. On the one hand, an orthogonal frequency division multiplexing (OFDM) based multiple access scheme (OFDMA), and on the other hand, a multi-carrier code division multiple access (MC-CDMA) scheme is proposed. Both transmission schemes are implemented in a cellular structure. The cellular environme...

متن کامل

Performance Improvement of Mc-cdma System through Dstbc Site Diversity

Multi-carrier code division multiple access (MC-CDMA) systems receive a great deal of attention due to their great potential in achieving high data rates in wireless communication. Nevertheless, when transmission over fading channel multi-cell interference occurs and this degrades the performance of the system. Site diversity technique is applied to the system to overcome this problem. Due to n...

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 2004