Accurate Approximation of QAM Error Probability on Quasi-Static MIMO Channels and Its Application to Adaptive Modulation
نویسندگان
چکیده
منابع مشابه
On Error Probability for Wideband MIMO Channels
Siddharth Ray Laboratory for Information and Decision Systems Massachusetts Institute of Technology Cambridge, MA 02139. e-mail: [email protected] Muriel Médard Laboratory for Information and Decision Systems Massachusetts Institute of Technology Cambridge, MA 02139. e-mail: [email protected] Lizhong Zheng Laboratory for Information and Decision Systems Massachusetts Institute of Technology Cambridge, ...
متن کاملconstruction and validation of translation metacognitive strategy questionnaire and its application to translation quality
like any other learning activity, translation is a problem solving activity which involves executing parallel cognitive processes. the ability to think about these higher processes, plan, organize, monitor and evaluate the most influential executive cognitive processes is what flavell (1975) called “metacognition” which encompasses raising awareness of mental processes as well as using effectiv...
Threshold-based frame error rate analysis of MIMO systems over quasi-static fading channels
Proper selection of a signal-to-noise ratio (SNR) threshold largely determines the tightness of an approximation to the frame error rate of a system over a quasi-static fading channel. We demonstrate that the expression for the optimal threshold value, which has been established for single-input single-output (SISO) channels, remains unchanged for the general case of multiple-input multiple-out...
متن کاملAdaptive M-qam Modulation over Nakagami Fading Channels
We study the performance of constant-power variable-rate M-QAM schemes over Nakagami fading channels. We obtain closed-form expressions for the outage probability, spectral eeciency and average bit-error-rate (BER) assuming perfect channel estimation and negligible time delay. For a target BER of 10 ?3 , the spectral eeciency of adaptive continuous rate M-QAM comes within 5 dB of the Shannon ca...
متن کاملAdaptive Modulation (QPSK, QAM)
In this paper, introduced below are the concepts of digital modulation used in many communication systems today. Techniques described include quadrature phase shift keying (QPSK) and quadrature amplitude modulation (QAM) and how these techniques can be used to increase the capacity and speed of a wireless network. These modulation techniques are the basis of communications for systems like cabl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Information Theory
سال: 2007
ISSN: 0018-9448
DOI: 10.1109/tit.2006.890731