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MULTICARRIER TECHNOLOGIES IN LTE

Adopting a multicarrier approach for multiple access in LTE was the first major design choice. The choice of multiple-access schemes was made in December 2005, with OFDMA being selected for the downlink, and SC-FDMA for the uplink. Both of these schemes open up the frequency domain as a new dimension of flexibility in the system, … Read more

Multicast Advantages and Disadvantages

When sending the same data to multiple receivers, rather than send multiple copies all the way from sender to all the receivers, just send one copy and duplicate where paths diverge Better bandwidth utilisation Less host/router processing Receivers’ addresses may be unknown A possible thing to use for IPTV over WiMAX. Multicast Advantages Enhanced Efficiency: … Read more

What is CPE Antenna Variations in LTE

A couple of differences may exist between the CPE and device specifications  the alleged targets. The differences are mainly due to two factors not normally thought of in the design process. • Works in Los scattering • Not optimal positioning of CPE When the RF design it is important to understand the characteristics of the … Read more