Fourth Generation (4G) of mobile systems is now replacing the 3G and 2G families of standards.Long Term Evolution (LTE) and LTE-Advanced network is the continuation of 3GPP-LTE (3GPP: 3rd Generation Partnership Project) and achieved the next step towards high data rate transfers and support of all multimedia functions and requiremensts. One of the main solutions to improve the performance of th...

In this paper, we propose to evaluate the performance of channel estimation techniques for Long Term Evolution (LTE) Downlink systems based on Zero Padding technique (ZP) instead of Cyclic Prefixing (CP). LTE Downlink system is a multiuser system based on a MIMO-OFDMA technology. Usually, in OFDM systems, a guard interval is inserted in order to mitigate both inter-carrier interference (ICI) an...

LTE (Long term evolution) represents an emerging and promising technology for providing broadband Internet access. New Scenarios for LTE can be implemented by analyzing the output performance using LTE Simulator. Unfortunately, at the present, to the best of our knowledge, no open source simulation platforms, to evaluate the performance of the entire LTE system, are freely available. LTE-Simula...

3rd Generation Partnership Project (3GPP) has recently completed the specification of the Long Term Evolution (LTE) standard. Majority of the world’s operators and vendors are already committed to LTE deployments and developments, making LTE the market leader in the upcoming evolution to 4G wireless communication systems. Multiple input multiple output (MIMO) technologies introduced in LTE such...

TD-LTE, one of the two duplexing modes in LTE, operates in unpaired spectrum and has the advantages of TDD-based technologies. It is expected that TD-LTE will be more rapidly deployed in near future and most of WiMax operators will upgrade their networks to TD-LTE gradually. Before completely upgrading to TD-LTE, WiMax may coexist with TD-LTE in an adjacent frequency band. In addition, multiple...

LTE networks are becoming more and more popular nowadays. There are two main problems in implementing LTE networks coverage and capacity. Both these problems can be solved by deploying femtocells in LTE networks. Interference occurs between newly added femtocell and pre existing macrocell as macrocell and femtocell share same frequency band. Macrocell-femtocell interference management is bigges...

This paper assumes that Long Term Evolution (LTE) will be deployed in TV White Spaces (TVWSs). Beamforming is a technology that is applied to an LTE base station (BS) for reducing interference impact of LTE on DTV. A simulation method based on Monte Carlo is proposed to evaluate the interference probability in DTV receivers in the case of interference impact of LTE BS on DTV receiver. As per si...

Shoji Hamao, Yuji Yoshida [Summary] Mobile phone networks in Japan are switching from 3G to 3.9G/4G (LTE hereafter). However, there are some overlapping frequency bands between 3G and LTE. Further, mixed 3G and LTE networks will remain in place for some years due to the high cost of replacing legacy 3G network infrastructure. Consequently, measuring instruments that can obtain stably outcome ne...