WCDMA Concept Orthogonal functions with spreading factors
{"Image DocumentName": "WCDMA Concept Orthogonal functions with spreading factors", "Image ImageDescription": "data sequence (bits/sec) SF (Spreading Factor) = chip_rate/bit_rate = 2^k. Chip Rate = 3.84 Mbps. For transmit sequences to be orthogonal it must be: ==> SF (chosen) = 3.84 Mbps/bit_rate. spreading sequence (chips/sec) transmit sequence. Orthogonal functions with spreading factors For speech of 12.2 kbps the spreading. factor = or gain = 25 dB. Max spreading factor = 256 with gain 24 dB. Maximum data rate = 960 kbps (gross) = 460 (net) which gives spreading factor = 4 and. the gain of 6 dB. How do we achieve 2 Mbps (net). Using 5 time slots SF=1. SF=2. SF=4. Faruk Hadziomerovic: Wireless Communications and Services, SSST Fall 2009.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}