Performance Analysis of Channel Capacity and Throughput of Lte Downlink System

نویسندگان

  • G. Laxminarayana
  • Srinivas Rao
چکیده

In this paper, we analyzed a numerical evaluation of the performance of MIMO radio systems in the LTE network environment. Downlink physical layer of the OFDM-MIMO based radio interface is considered for system model and a theoretical analysis of the bit error rate of the two space-time codes (SFBC 2×1 and FSTD 4×2 codes are adopted by the LTE norm as a function of the signal to noise ratio. Analytical expressions are given for transmission over a Rayleigh channel without spatial correlation which is then compared with Monte-Carlo simulations. Further evaluated channel capacity and simulation results show throughput almost reaches to the capacity limit.

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

Throughput Performance of 2×2 Mimo LTE Downlink in a Spatial Correlation Based Microcellular Channel for Wireless Broadband Networks

ABSTRACT Multiple Input Multiple Output (MIMO) technology is going to be a viable alternative for future generation wireless broadband services in order to meet the striving requirements for throughput and system robustness. In Long Term Evolution (LTE), MIMO technologies have been broadly used to get better downlink peak rate, cell coverage, as well as average cell throughput. In the present p...

متن کامل

Performance Analysis of Transmit Diversity and Spatial Multiplexing MIMO modes Vs. SISO System in LTE-Downlink System

In this paper we evaluate the performance of LTE-Downlink System with different Transmit diversity and Spatial multiplexing MIMO modes in LTE-downlink. Here we analysis performance on BLER-Block Error Rate and Data Throughput vs SNR-Signal to Noise Ratio. Two Transmit Diversity schemes Space Frequency Block Codes (SFBC) and Frequency Switched Transmit Diversity (FSTD) and two Spatial Multiplexi...

متن کامل

Interference Management in Lte Downlink Networks

Two major challenges for evolving LTE (Long Term Evolution) networks are to achieve enhanced system capacity and cell coverage compared with WCDMA (Wideband Code Division Multiple Access) system. Effective utilization of radio resources as well as dense spectrum reuse are at the core to attain these targets. However, dense frequency reuse may increase inter-cell interference, which in turn seve...

متن کامل

Scheduling Policies for the LTE Downlink Channel: A Performance Comparison

A key feature of the packet scheduler in LTE system is that it can allocate resources both in the time and frequency domain. Furthermore, the scheduler is acquainted with channel state information periodically reported by user equipments either in an aggregate form for the whole downlink channel, or distinguished for each available subchannel. This mechanism allows for wide discretion in resour...

متن کامل

Measurement-Based Evaluation of the LTE MIMO Downlink at Different Antenna Configurations

Multi-antenna transmission modes are an integral feature of the 3GPP LTE downlink. While these modes are well defined in the standard there are no restrictions on the choice of transmit and receive antennas. In order to investigate the impact of the basestation antenna configuration on the LTE open loop downlink, a measurement campaign, comparing horizontally and vertically spaced antenna confi...

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 2017