ScholarLens Back to search
2013•Unpublished venueRequires access

Study of the Effect of Cyclic Prefix on Different QoS Parameters in WiMax Network

Sayani Ghosh, Iti Saha Misra, Salil Kumar Sanyal

Open publisher page 1 citations

Abstract

The Intersymbol Interference (ISI) is a common problem in high data rate communication. In OFDM transmission technique ISI is a common problem. So, Guard time length (GT) which is implemented as Cyclic Prefix (CP) to mitigate Intersymbol Interference (ISI) and to preserve orthogonality among OFDM subcarriers, plays a key parameters in OFDM. The guard time length is sufficiently greater than channel delay spread. Conventional OFDM system uses a fix GT length. This technique, however, degrades the overall spectral efficiency as well as consumes transmitter energy proportional to the length of the guard time. In this paper, the overall system performance and packet error rate (PER) are slightly improved as function of the guard time length.

About this research paper

What this paper is about

The Intersymbol Interference (ISI) is a common problem in high data rate communication. In OFDM transmission technique ISI is a common problem. So, Guard time length (GT) which is implemented as Cyclic Prefix (CP) to mitigate Intersymbol Interference (ISI) and to preserve orthogonality among OFDM subcarriers, plays a key parameters in OFDM. The guard time length is sufficiently greater than channel delay spread. Conventional OFDM system uses a fix GT length. This technique, however, degrades the overall spectral efficiency as well as consumes transmitter energy proportional to the length of the guard time. In this paper, the overall system performance and packet error rate (PER) are slightly improved as function of the guard time length.

Why it matters

OpenAlex reports 1 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

The Intersymbol Interference (ISI) is a common problem in high data rate communication. In OFDM transmission technique ISI is a common problem. So, Guard time length (GT) which is implemented as Cyclic Prefix (CP) to mitigate Intersymbol Interference (ISI) and to preserve orthogonality among OFDM subcarriers, plays a key parameters in OFDM. The guard time length is sufficiently greater than channel delay spread. Conventional OFDM system uses a fix GT length. This technique, however, degrades the overall spectral efficiency as well as consumes transmitter energy proportional to the length of the guard time. In this paper, the overall system performance and packet error rate (PER) are slightly improved as function of the guard time length.

Key concepts: Cyclic prefix, Intersymbol interference, Orthogonal frequency-division multiplexing, Guard interval, Computer science, Nyquist ISI criterion, Delay spread, Spectral efficiency

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Study of the Effect of Cyclic Prefix on Different QoS Parameters in WiMax Network — Research Paper | ScholarLens