Communication in a fluctuating channel models and use of explicit or implicit diversity
نویسندگان
چکیده
In a first part the Rayleigh model has been tested in long distance submarine acoustics transmission and we present sane experimental results of explicit frequential diversity. In the general delay and Doppler dispersive, case, we present sane results of inplicit diversity in order to decrease the error probability and we show the consequences of this concept on to the signal design problem. We have applied this study particularly in ts cases the multipath transmission and the fast—fading modulation case.
منابع مشابه
Knowledge of Grammar, Oral Communication Strategies, and oral Fluency: A Study of Iranian EFL Learners
This study tested the impact of implicit and explicit knowledge of grammar on learners’ use of oral communication strategies (OCSs) and the interface of OCSs and oral fluency. The study was performed on 24 male and 36 female Iranian university students of English Translation studying at Payame Nour Universities of Lar, Khonj, and Evaz chosen based on availability and ease of access. The data we...
متن کاملEvaluating the Effectiveness of Explicit and Implicit Form-Focused Instruction on Explicit and Implicit Knowledge of EFL Learners
Although explicit and implicit knowledge of language learners are essential to theoretical and pedagogical debates in second language acquisition (SLA), little research has addressed the effects of instructional interventions on the two knowledge types (R. Ellis, 2005).This study examined the relative effectiveness of explicit and implicit types of form-focused instruction (FFI) on the acquisit...
متن کاملImplicit and Explicit Instruction and EFL Learners’ Implicit Knowledge Development: Evidence from Word Monitoring Task
Research on the effect of implicit and explicit instruction on developing learners’ explicit knowledge by the use of measures of explicit knowledge abounds in the literature. However, measuring learners’ implicit knowledge employing fine-grained measures has rarely been the concern of researchers in the field. Therefore, the present study is an attempt to scrutinize the effectiveness of implici...
متن کاملEvaluating the Effectiveness of Deductive and Inductive Form-Focused In-struction on Iranian EFL Learners' Implicit and Explicit Knowledge of Non-Generic Definite Article
This study investigated the relative effects of deductive and inductive form-focused instruction (FFI) on the acquisition of 4 non-generic definite article uses(cultural, situational, structural, and textual) as assessed by explicit and implicit outcome measures. The tests utilized to assess EFL learners' acquisition of definite article uses were timed and untimed grammaticality judgment tests....
متن کاملStudy of Explicit Knowledge Effects on Implicit Motor Learning in Older Adults
Objective: The motor skill performance and learning in older adults are of a great importance. The primary purpose of this study was to determine whether older adult’s explicit knowledge effect on implicit learning and motor performance and which are typical for rehabilitation and skills acquired in older adults. Materials & Methods: In this comparative study a serial reaction time task by u...
متن کامل