A BLAST/MIMO detector with 3.84 bit/s/Hz spectral efficiency supporting up to 4 x 4 QPSK MIMO is presented. The detector shows over a 5 dB improvement over VBLAST for an uncoded data system.
Incorporating the direct conversion architecture, a 5GHz band radio transceiver front-end chipset for wireless LAN applications is implemented in a 0.25-microns CMOS technology.
Information related to transmission performance of toll connections is essential to the evaluation of toll service quality, necessary for assessing the adequacy of present administrative and mainte
Data-Phone service was introduced on the switched network in 1959.
Reasons for Measuring Low-Speed Data Performance Measurements of the accuracy of low-speed data transmission over the Bell System switched network have been included in the 1969-70 Toll Connection
A comprehensive system-wide field study, referred to as the 1982/32 End Office Connection Study, was undertaken by Bell Laboratories from October, 1982 through January, 1983 to characterize the tra
Traditionally X.75 has been "the protocol" used on the interfaces linking packet networks providing services based on the CCITT Recommendation X.25.
The 1990 National Electrical Code has several new provisions which will impact the communications industry.
The 1A Processor control system, coupled with program, call, and auxiliary memory, is an independent, stand-alone processor with full operational and maintenance capability.
Control, administrative, and utility software has been developed for the 1A Processor that simplifies the task of using input/output devices, managing system time and memory resources, providing co
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