CDMA optimizes the use of available bandwidth as it transmits over the entire frequency range and does not limit the user’s frequency range . It is used as the access method in many mobile phone standards.
Read moreWhat are the design features of CDMA?
CDMA in cellular systems offers attractive features such as the potential for high spectrum efficiency, soft capacity, soft handover and macro-diversity . This has been claimed and demonstrated in various system design studies, analyses and trials.
Read moreHow do you represent data in CDMA?
CDMA is a spread spectrum technique. Each data bit is spread by a code sequence . This means, energy per bit is also increased.
Read moreWhat is the duration of WCDMA frame?
radio frame structure of WCDMA is shown in Figure 1 [15]. Frame structure has an overall length of 10 ms , comprising 15 time-slots. …
Read moreWhat is voice activity factor in CDMA?
The Voice Activity Factor of 0.4 is considered = -4dB . CDMA has 100% frequency reuse. Use of same frequency in surrounding cells causes some additional interference.
Read moreHow do you calculate uplink frequency?
The actual frequencies (uplink and downlink) used inside the frequency range are determined by the ARFCN. … Frequency Bands. DCS 1800PCS 1900ARFCN512-885512-810Uplink (UL) Formula (MHz)FUL(n) = 1710.2 + 0.2*(n-512)FUL(n) = 1850.2 + .2*(n-512)Downlink (DL) Formula (MHz)FDL(n) = FUL(n)+95FDL(n) = FUL(n)+80Frequency Bands – Keysight RFMW Sitemap rfmw.em.keysight.com › rfcomms › refdocs › gsm › gen_bse_cell_band
Read moreWhat frequency is used in CDMA based cellular communication?
As the term implies, CDMA is a form of multiplexing, which allows numerous signals to occupy a single transmission channel, optimizing the use of available bandwidth. The technology is used in ultra-high-frequency (UHF) cellular phone systems in the 800 megahertz (MHz) and 1.9 gigahertz (GHz) bands.
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