Dual antenna UMTS mobile station transceiver ASIC for 2 Mb/s data rate

Microprocessors and Microsystems

Engel

Geuskens

et al. 2013

a b s t r a c tAs systems-on-chip increase in complexity, the underlying technology presents us with significant challenges due to increased power consumption as well as decreased reliability. Today, designers must consider building systems that achieve the requisite functionality and performance using components that may be unreliable. In order to do so, it is crucial to understand the close interplay between the different layers of a system: technology, platform, and application. This will enable the most general tradeoff exploration, reaping the most benefits in power, performance and reliability. This paper surveys various cross layer techniques and approaches for power, performance, and reliability tradeoffs are technology, circuit, architecture and application layers.

Section: Use Casesmentioning

confidence: 99%

A survey of cross-layer power-reliability tradeoffs in multi and many core systems-on-chip

Microprocessors and Microsystems

Engel

Geuskens

et al. 2013

“…It is based on a dual embedded microcontroller architecture. This chip has been designed and fabricated by the authors and an extensive coverage of this modem has been presented in [9]. The combiner output from the modem are soft values with 10 bit precision that are available for all the data and control symbols transmitted.…”

Section: Bmentioning

confidence: 99%

“…For a given set of operating condition, the radio has to be smart enough to decide which approach to choose in order to make the optimum use of the resources. In our power calculations, the WCDMA modem consumes 72% of the total power [9] whereas the H.264 decoder consumes 28% of the total power in 65nm technology node [11]. Other systems may have different contributions of the two system components.…”

Section: Case Studymentioning

confidence: 99%

Power Management for Cognitive Radio Platforms

Khajeh

Cheng

IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference

et al. 2007

Abstract-This paper discusses how the cognitive radio concept can be extended to allow the system not only to manage shared resources such as spectrum, but to use this knowledge to optimize the overall system power consumption. We introduce a case study of video over wireless via a 3G WCDMA modem connected to an H.264 decoder. We show that by utilizing knowledge about the communication channel, a savings of more than 20% of the overall system power is possible while maintaining a required quality of service.

“…The dual antenna Rake receiver was implemented in an application specific integrated circuit (ASIC) in a 0.18 µm, 1.8 V CMOS technology [3,5]. The ASIC integrates all the digital functionalities required to realize a WCDMA compliant UE.…”

Section: Pcmcia Implementationmentioning

confidence: 99%

Simulation, implementation and performance evaluation of a diversity enabled WCDMA mobile terminal

Frigon

Daneshrad

et al. 2007

Wireless Pers Commun

Smart antenna array technology has been shown to greatly improve the performance of wireless communication systems. In this article, we describe the impact of smart antenna array processing at cellular networks. Using system simulations we demonstrate the quality of service, network coverage, and network capacity improvement provided by a WCDMA dual antenna receiver and we establish a relationship between this improvement and the link level performance. We then describe a receiver architecture for a dual antenna WCDMA mobile receiver. The proposed receiver was implemented, as part of a complete mobile terminal solution, in an ASIC using a 0.18 µm, 1.8 V CMOS technology. The ASIC was integrated with RF, analog and digital components in a PCMCIA card form factor. The PCMCIA is a 3GPP compliant user equipment and has been submitted to standardized performance and conformance tests. Experimental measurements gathered with the PCMCIA card illustrate the impact of a diversity enabled mobile data terminal on the link level performance. For various propagation environments and transmission data rates, improvements in the range of 2.7 -10 dB in the required DPCH I c /I or for a 1% Block Error Rate (BLER) were observed. These measurements are within 1.4 dB of the ideal link level simulations which indicates that the predicted improvement at the network level should also materialize. The results presented in this paper show the tremendous potential of smart antenna arrays in 3G WCDMA cellular networks and establish diversity as a viable solution for highspeed cellular communications. 1102 J.-F. Frigon et al.