The overall spreading factor can be defined as the multiplication of the repetition coder code rate R and the orthogonal sequence spreading factor [N.sub.SF.sup.PHICH]. Analysis of LTE Physical Hybrid ARQ Control Channel More results ► Dictionary browser ? ▲ sprayey spraying spraying machine ...
Spreading factor (SF) estimation in a code division multiple access (CDMA) spread spectrum system where the SF of the data channel may change on a frame-by-frame basis to reflect a change in the data rate for each corresponding frame. The SF estimation methods despread the data channel for...
这个Chip和 Symbol 还有Spreading factor (SF)有关系 具体来说就是 一个单位信息 Symbol 由 SF 个 Chip 组成 而这个 SF 只可能是 2 的整数次幂 (2, 4, 8, 16, 32 …) 对于上边这个图来说 每一个 Chip 都是 一个 12 位的复数 其中6 位实部 6 位虚部 OVSF code 这个码是为了 区分传输设备和传输...
Human serum spreading factor (SF) is a blood glycoprotein that promotes attachment and spreading and influences growth, migration, and differentiation of a variety of animal cells in culture. SF purified from human plasma or serum by chromatographic methods reported previously (Barnes, D. W., and...
(UPH) of the UE and an inter-cell interference threshold value; for a preset value of each spreading factor (SF), determining the media access layer (MAC) layer maximum rate which can be born by an enhanced dedicated channel (E-DCH) in the preset value of the SF according to the ...
[1] The number of chips per modulation symbol is called the Spreading Factor (SF). Video Transmission for Third Generation Wireless Communication Systems More results ► Thesaurus browser ? ▲ sprat sprawl sprawler sprawling sprawly spray spray can spray gun spray paint spray painting spray-dry ...
In this paper, orthogonal multi-code MC-CDMA is considered that multiplexes as many parallel channels as the spreading factor (SF) to achieve the same data rate as OFDM. As larger SF is used, larger inter-code interference is produced due to orthogonality destruction while achieving larger ...
Furthermore, by establishing the spreading factor of SF = 1, i.e., no spreading mode, VSF-OFCDM can be used as orthogonal frequency division multiplexing (OFDM). Simulation results demonstrate that, while SF = 1 (OFDM) achieves higher link capacity than SF > 1 in an isolated-cell ...
The number of bits per LoRa symbol as well as the symbol rate depend on an applied spreading factor (SF) that could vary between 7 and 12. In this paper, interleaved chirp spreading LoRa (ICS-LoRa) is proposed as a physical layer-inspired approach to enhance data rates of the capacity-...
same-frequency cells/sectors. Upstream and downstream power control and upstream link timing control are provided, as are single CDMA channel data rates from 32 kbps up to 16 Mbps depending on SF (spreading factor) and chip rate. In the preferred system SCDMA channel aggregation is provided for...