Effect of Cyclic Prefix on OFDM Signal
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2015, Vol 3, Issue 7
Abstract
To fulfill the 4G network systems requirement, higher reliability and high spectral efficiency are required. To achieve this Orthogonal Frequency Division Multiplexing (OFDM) is considered to be the best modulation technique for 4G - networks. OFDM can provide large data rates with sufficient robustness to radio channel impairments. OFDM is designed such a way that it sends data over hundreds of parallel streams which increases the amount of information that can be sent at a time. It can offer high quality performance in terms of bandwidth efficiency, robustness against multipath fading and cost effective implementation. A guard time, in the form of cyclic prefix (CP), is inserted between OFDM symbols to eliminate both the intersymbol interference (ISI) and the inter-channel interference (ICI). In this paper we have studied the effect of cyclic prefix on data rate using OFDM modulation techniques. For this method to work efficiently the space between sub carriers should be maintained exactly at the specified position which satisfy the condition of orthogonality Zero padding (ZP) of multicarrier transmissions has recently been proposed as an appealing alternative to the traditional cyclic prefix (CP) orthogonal frequencydivision multiplexing (OFDM) to ensure symbol recovery regardless of the channel zero locations.
Authors and Affiliations
Sameer A. Jagtap, Venkat N. Ghodke
Three Phase Grid Connected Photovoltaic systems Using Effective Linear Stabilization System with fuzzy logic controller
This paper presents a robust linear stabilization scheme for a three-phase grid-connected solar system to control the output current of solar cell connected to the grid and dc-link voltage to extract maximum output powe...
The Interrelation between the Shape of a Building and its Potential Energy Performance
Morocco is highly dependent on imported energy. Over 91% of energy supplied comes from abroad. However, renewable energy in this country may represent significant deposits as an Alternative energy. Indeed, an effective...
The Survey on Energy Efficient Routing Protocols
In this paper we propose an approach. The wireless sensor network consists of the nodes, base station and these networks are low cost, has limited battery, which is rechargeable, other than battery, gateways can be used...
An Efficient Reused VLSI Architecture of FMO/Manchester Encoding using SOLS Technique for DSRC Applications
the dedicated short-extend correspondence (DSRC) is an effective procedure to push the clever transportation framework into our day by day life. The DSRC guidelines for the most part receive FM0 and Manchester codes to...
Forensic Analysis of the Saffron: Rapid Authenticity Testing
Saffron is the valuable spice of our food. It is the dried stigma of the flower Crocus sativus Linnaeus, the most economic part of the plant. Due to its high price and demand throughout world, it became frequent object...