This chapter presents the basics of the current theory regarding the behavior of blind fractionally-spaced and/or spatial-diversity equalizers (FSE) adapted via the constant modulus algorithm (CMA). The constant modulus algorithm , which was developed in the late 1970s and disclosed in the early 1980s, performs a stochastic gradient descent of a cost… (More)
Engineering, 578 pages. Combining theoretical knowledge and practical applications, this advanced-level textbook covers the most important aspects of contemporary digital communication systems.
I n this excerpt from " Visions for the Future of the Fields, " a panel discussion held on the 10th anniversary of the US Computer Science and Telecommunications Board, experts identify critical issues for various aspects of computing. In the accompanying sidebars, some of the same experts elaborate on points in the panel discussion in mini essays: David… (More)
I was driving home on a fall evening in 1964 after an ordinary day at Bell Labs, with no premonition that this particular commute would change my life. I had stopped the car at a traffic light in the small, suburban New Jersey town of Red Bank. In the time that it took the light to change from red to green, I invented my automatic equalizer. I suppose the… (More)
In this month's essay, Robert Lucky examines the central sociological impacts that communications technologies have had on the way science is done as well as the critical influences science has had in the evolution of communications technology. He traces the evolution of today's infrastructure for research and collaboration in science via the Internet and… (More)
n a bright sunny morning in early October of 1961, I walked up to the entrance of Bell Labs in Murray Hill, New Jersey, for my first day of work. Somewhere within these storied walls were the heroes whose works I had studied in graduate school. Here Claude Shannon had conceived information theory, Steve Rice had written his landmark paper on noise, and the… (More)