Low-power design of direct conversion baseband DECT receiver

Zervas, N.D.; Perakis, M.; Soudris, Dimitrios; Metaxakis, E.G.; Tzimas, A.; Kalivas, Grigorios; Goutis, C.E.

doi:10.1109/82.988937

Cited by 6 publications

(1 citation statement)

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“…Gaussian minimum-shift keying (GMSK) modem (modulator-demodulator) implementation can be fully digital and can be based on simple processing blocks like accumulators, correlators and lookup tables (LUTs) [Wu00], [Zervas01]. 2G cellular radio uses GMSK, a special form of continuous-phase frequency-shift keying (CPFSK).…”

Section: Baseband Platformmentioning

confidence: 99%

Radio Communications: System Concepts, Propagation and Noise

Kalivas

2009

Digital Radio System Design

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A critical point for the development of radio communications and related applications was the invention of the 'super-heterodyne' receiver by Armstrong in 1917. This system was used to receive and demodulate radio signals by down-converting them in a lower intermediate frequency (IF). The demodulator followed the IF amplification and filtering stages and was used to extract the transmitted voice signal from a weak signal impaired by additive noise. The super-heterodyne receiver was quickly improved to demodulate satisfactorily very weak signals buried in noise (high sensitivity) and, at the same time, to be able to distinguish the useful signals from others residing in neighbouring frequencies (good selectivity). These two properties made possible the development of low-cost radio transceivers for a variety of applications. AM and FM radio were among the first popular applications of radio communications. In a few decades packet radios and networks targeting military communications gained increasing interest. Satellite and deep-space communications gave the opportunity to develop very sophisticated radio equipment during the 1960s and 1970s. In the early 1990s, cellular communications and wireless networking motivated a very rapid development of low-cost, low-power radios which initiated the enormous growth of wireless communications.The biggest development effort was the cellular telephone network. Since the early 1960s there had been a considerable research effort by the AT&T Bell Laboratories to develop a cellular communication system. By the end of the 1970s the system had been tested in the field and at the beginning of the 1980s the first commercial cellular systems appeared. The increasing demand for higher capacity, low cost, performance and efficiency led to the second generation of cellular communication systems in the 1990s. To fulfill the need for high-quality bandwidthdemanding applications like data transmission, Internet, web browsing and video transmission, 2.5G and 3G systems appeared 10 years later.Along with digital cellular systems, wireless networking and wireless local area networks (WLAN) technology emerged. The need to achieve improved performance in a harsh propagation environment like the radio channel led to improved transmission technologies like spread spectrum and orthogonal frequency division multiplexing (OFDM). These technologies were Digital Radio System Design Grigorios Kalivas

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Section: Baseband Platformmentioning

confidence: 99%