What is frequency reuse in PPT?
Example of frequency reuse factor or pattern 1/4 The frequency reuse factor is the rate at which the same frequency can be used in the network. It is 1/K (or K according to some books) where K is the number of cells which cannot use the same frequencies for transmission.
What is reuse frequency?
Technique for using a specified range of frequencies more than once in the same radio system so that the total capacity of the system is increased without increasing its allocated bandwidth.
What is frequency reuse concept in cellular communication?
Frequency reusing is the concept of using the same radio frequencies within a given area, that are separated by considerable distance, with minimal interference, to establish communication. Frequency reuse offers the following benefits − Allows communications within cell on a given frequency.
What is the advantages of frequency reuse?
Advantages of frequency reuse: Large coverage area. Efficient spectrum utilization. Enhanced system capacity.
What is the advantage of using frequency reuse?
Frequency reuse improve the spectral efficiency and signal Quality (QoS). Frequency reuse classical scheme proposed for GSM systems offers a protection against interference.
What are the advantages of frequency reuse?
Which is the major concern in frequency reuse?
2.1. 1 Frequency Reuse Covering a large geographic area with limited amount of spectrum leads to the reuse of the same frequency in multiple locations; this leads to co-channel interference considerations, meaning interference from different areas (or cells) that use the same frequency channel.
What is the importance of frequency reuse?
Which hand off used in CDMA?
Soft handover or soft handoff refers to a feature used by the CDMA and W-CDMA standards, where a cell phone is simultaneously connected to two or more cells (or cell sectors) during a call.
What is the reuse efficiency of CDMA?
In CDMA frequency, reuse efficiency is 0.67 (70% eff.) = -1.73dB CDMA has a soft capacity. The greater the number of codes, the more the number of users. It has the following advantages −
What is the voice activity factor of CDMA?
The Voice Activity Factor of 0.4 is considered = -4dB. Hence, CDMA has 100% frequency reuse. Use of same frequency in surrounding cells causes some additional interference. In CDMA frequency, reuse efficiency is 0.67 (70% eff.) = -1.73dB CDMA has a soft capacity. The greater the number of codes, the more the number of users.
What is the capability of CDMA?
Capacity in CDMA is soft, CDMA has all users on each frequency and users are separated by code. This means, CDMA operates in the presence of noise and interference. In addition, neighboring cells use the same frequencies, which means no re-use.
What is multiple access (CDMA)?
Next Page Code Division Multiple Access (CDMA) is a sort of multiplexing that facilitates various signals to occupy a single transmission channel. It optimizes the use of available bandwidth. The technology is commonly used in ultra-high-frequency (UHF) cellular telephone systems, bands ranging between the 800-MHz and 1.9-GHz.