CDMA Chipsets

From Wikipedia, the free encyclopedia

CDMA Chipsets is a popular Chipsets used in 3G and 2G mobile phones manufactured by Qualcomm Inc.

v • d • e Spread spectrum in Digital Communications Main articles Spread spectrum & Code division multiple access History: Hedy Lamarr · Commercial use · More... Spread spectrum Methods Direct-sequence spread spectrum (DSSS) · Frequency-hopping spread spectrum (FHSS) · Chirp spread spectrum (CSS) · Time-hopping spread spectrum (THSS) CDMA Schemes W-CDMA · TD-CDMA · TD-SCDMA · DS-CDMA · FH-CDMA · MC-CDMA Major implementations Wi-Fi (IEEE 802.11) · Space Network (NASA) · GPS · Galileo · GLONASS · Bluetooth · Cordless phones: DECT Cellular: EV-DO Mobile · IS-95 (aka cdmaOne) · CDMA2000 (aka IS-2000) · Also: Qualcomm · Verizon Major concepts PN (pseudorandom noise) code · Chip · Near-far problem · Power spectral density (PSD) · Rake receiver · Low probability of intercept See also: Digital communication · Modulation · Statistical multiplexing · Waveform