Adaptive Space–Time Coding Using ARQ
نویسندگان
چکیده
منابع مشابه
Adaptive Space-Time Coding Using ARQ
We study the energy-limited outage probability of the block space-time coding (STC)-based systems utilizing automatic repeat request (ARQ) feedback and adaptive power allocation. Taking the ARQ feedback costs into account, we derive closed-form solutions for the energy-limited optimal power allocation and investigate the diversity gain of different STCARQ schemes. Also, sufficient conditions ar...
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We develop a cross-layer design which combines adaptive modulation and coding (AMC) at the physical layer with a truncated auto repeat request (ARQ) protocol at the data link layer, in order to maximize spectral efficiency under prescribed delay and performance constraints. We derive the achieved spectral efficiency in closed-form for transmissions over Nakagami-m block fading channels. Numeric...
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For delay-tolerant data services, adaptive transmission with the modulation and coding scheme (MCS) adjusted according to the instantaneous channel condition can maximize the throughput. In time-varying channels, the performance degradation of adaptive transmission caused by delayed or inaccurate channel condition feedback can be mitigated with the use of hybrid automatic repeat request (HARQ)....
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In this paper, we present a method to construct rate-compatible convolutional (RCC) codes from known high-rate punctured convolutional codes, obtained from best-rate 1/2 codes. The construction method is rather simple and straightforward, and still yields good codes. Moreover, low rate codes can be obtained without any limit on the lowest achievable code rate. Based on the RCC codes, a generali...
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ژورنال
عنوان ژورنال: IEEE Transactions on Vehicular Technology
سال: 2015
ISSN: 0018-9545,1939-9359
DOI: 10.1109/tvt.2014.2362173