Effect of Primary Interference on Cognitive Relay Network
نویسندگان
چکیده
منابع مشابه
Network capacity of cognitive radio relay network
After successful dynamic spectrum access, cognitive radio (CR) must be able to relay the message/packets to the destination node by utilizing existing primary system(s) (PS) and/or cooperative/cognitive radio nodes in the cognitive radio network. In this paper, we pioneer the exploration of the fundamental behaviors of interference between CRs and PS in such a relay network via network coding. ...
متن کاملeffect of oral presentation on development of l2 learners grammar
this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...
15 صفحه اولCognitive Mesh Network Under Interference from Primary User
In a commonly accepted usage scenario, a cognitive radio appears as a secondary user of certain spectrum which is licensed to another, primary system. A prominent example of cognitive system is a mesh network operating under the interference from primary system. For such a scenario, we propose techniques for efficient secondary usage of spectrum, which rely on the adaptive array antenna in orde...
متن کاملUnderlay Cognitive Networks with Partial Relay Selection and Primary-User Interference
Most related works addressing cognitive relaying networks focus on the impact of the interference constraint imposed by the primary receivers on the performance of the secondary network, while neglecting the interference coming from the primary transmitters. In this paper, we assess the outage performance of a cognitive relaying network composed by a source communicating with a destination unde...
متن کاملDistributed Spatial Modulation in Cognitive Relay Network
Spatial modulation (SM) is a recently developed multiple-input-multiple-output (MIMO) technique that uses multiple transmit antennas in a innovative fashion. In SM, a group of information bits is mapped into two constellations: a signal constellation based on modulation scheme, and a spatial constellation to encode the index of a transmit antenna. At any time instant, only one transmit antenna ...
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: Ciência e Natura
سال: 2015
ISSN: 2179-460X,0100-8307
DOI: 10.5902/2179460x20776