November 2006 [Systems & Subsystems] ACM Controls Cost Of Increased Spectral Efficiency Cellular-communications system operators depend on efficient access network technologies to maximum spectral efficiency (bits/Hz) at minimum cost. Adaptive code and modulation (ACM) is an emerging wireless technology-that promises to do just that. With ACM technology, cellular operators can provide high-capacity payload over microwave links and improve the link utilization; this lowers capital expenditures for the RF equipment and operational expenditures for the... |
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