WiMAX is one of the hottest broadband wireless technologies around today. WiMAX systems are expected to deliver broadband access services to residential and enterprise customers in an economical way. Loosely, WiMax is a standardized wireless version of Ethernet intended primarily as an alternative to wire technologies (such as Cable Modems, DSL and T1/E1 links) to provide […]
Wireless
IEEE wireless standards
The IEEE 802.11 wireless Ethernet standards come from the Institute of Electrical and Electronics Engineers, Inc. (IEEE). This organization only sets the specifications for the standards—it doesn’t test individual wireless products for compliance to these standards. Because the IEEE 802.11 standards are real Ethernet standards that look like Ethernet to your applications, compatibility with wired […]
What is VSAT
VSAT is short for very small aperture terminal, an earthbound station used in satellite communications of data, voice and video signals, excluding broadcast television. A VSAT consists of two parts, a transceiver that is placed outdoors in direct line of sight to the satellite and a device that is placed indoors to interface the transceiver […]
LTE and WiMAX comparison
Comparison of LTE Rel-8 and WiMAX 802.16e There are a lot of commonalities between LTE Rel-8 and WiMAX, but there are some notable differences. For example: LTE uses SC-FDMA for the uplink, whereas mobile WiMAX uses OFDMA. LTE user equipment (SC-FDMA) has a lower peak-to-average-power ratio when compared to mobile WiMAX user equipment (OFDMA), […]
Comparison of LTE and WiMAX
1. Comparison of LTE Rel-8 and WiMAX 802.16e There are a lot of commonalities between LTE Rel-8 and WiMAX, but there are some notable differences. For example: LTE uses SC-FDMA for the uplink, whereas mobile WiMAX uses OFDMA. LTE user equipment (SC-FDMA) has a lower peak-to-average-power ratio when compared to mobile WiMAX user equipment (OFDMA), […]
Generación de calor en mazos de cables
La transmisión de energía a través de un sistema de cableado genérico provoca un incremento de los niveles de temperatura dentro de los cables. El aumento de temperatura depende del volumen de energía transmitido, el corte transversal del conductor y el aislamiento térmico alrededor del mazo. Los cables en el centro de un mazo se […]