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Although CDMA EVDO Rev. A provides significant improvements over EVDO Release 0 that make it well suited for VoIP-like applications [3], it remains unclear about its performance in terms of quantitative evaluations with different real implementation scenarios. To understand the system design tradeoffs, we first investigate the traffic characteristics of EVRC-encoded real voice traces and we find that...
TDD version of 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) provides a mode of operation in a single block of spectrum with Uplink and Downlink 1ms-subframes multiplexed in time. Limited number of Uplink subframes coupled with unequal number of Physical Random Access Channel (RACH) opportunities per subframe results in TDD LTE RACH resources and the offered load being non-uniform...
It has been ascertained from theoretical premises and commercial practice that sodium aluminate may be produced using alumina-bearing industrial intermediates and wastes, including spent potliner and salt cake resulting from aluminum-dross recycling. The utilization of these unused waste materials can provide a supply for the world’s demand for sodium aluminate and improve environmental conditions.
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