Within a wireless opportunistic network,one of the lucky users gets an opportunity to utilize thewhole radio resource.However some of the unlucky users keep silent during an unexpected period result-ing from severe wi...Within a wireless opportunistic network,one of the lucky users gets an opportunity to utilize thewhole radio resource.However some of the unlucky users keep silent during an unexpected period result-ing from severe wireless environment and imperfect scheduling algorithms .An opportunistic cooperationprotocol is proposed that can achieve equivalent performance measured in terms of outage probability,inwhich scheme the opportunistic user helps to relay what need retransmitting indicated by the destinationand selects the appropriate power allocation to pursue fairness.The proposed scheme deploys superposi-tion coding and successive interference cancellation at relay and destination,respectively .To improve thespectral efficiency,the modified cooperation architecture involves two opportunistic users which work inturn.The simulation results demonstrate that the protocol obtains better performance compared with theconventional methods.展开更多
This paper analyzes the effect of rhetorical devices, such as irony, sarcasm, parody, hyperbole, pun, antonomasia, etc., in dialogues of the American TV series The Big Bang Theory （2007） with an aim to help improve ...This paper analyzes the effect of rhetorical devices, such as irony, sarcasm, parody, hyperbole, pun, antonomasia, etc., in dialogues of the American TV series The Big Bang Theory （2007） with an aim to help improve English learners＇ awareness and appreciation of rhetorical means in English-based literary works. Instances are cited with the use of such rhetoric means in the dialogue transcriptions. It is discovered that integrated use of a variety of rhetorical devices is a significant means for vivid and impressive characterization in literature. Such an analysis is a rewarding journey on either an academic or entertainment basis, and a process of discovery and learning that may particularly be well-received with EFL （English as a Foreign Language） learners展开更多
A new fixed point theorem and the selection property for upper semi-continuous set-valued mappings in abstract convexity space are established. As their applications the existence of Nash equilibrium for n-person non-...A new fixed point theorem and the selection property for upper semi-continuous set-valued mappings in abstract convexity space are established. As their applications the existence of Nash equilibrium for n-person non-cooperative generalized games is proved.展开更多
基金supported by the National Nature Science Foundation of China(No.60674009)the High Technology Research and Development Programme of China(No.2006AA01Z270)
文摘Within a wireless opportunistic network,one of the lucky users gets an opportunity to utilize thewhole radio resource.However some of the unlucky users keep silent during an unexpected period result-ing from severe wireless environment and imperfect scheduling algorithms .An opportunistic cooperationprotocol is proposed that can achieve equivalent performance measured in terms of outage probability,inwhich scheme the opportunistic user helps to relay what need retransmitting indicated by the destinationand selects the appropriate power allocation to pursue fairness.The proposed scheme deploys superposi-tion coding and successive interference cancellation at relay and destination,respectively .To improve thespectral efficiency,the modified cooperation architecture involves two opportunistic users which work inturn.The simulation results demonstrate that the protocol obtains better performance compared with theconventional methods.
文摘This paper analyzes the effect of rhetorical devices, such as irony, sarcasm, parody, hyperbole, pun, antonomasia, etc., in dialogues of the American TV series The Big Bang Theory （2007） with an aim to help improve English learners＇ awareness and appreciation of rhetorical means in English-based literary works. Instances are cited with the use of such rhetoric means in the dialogue transcriptions. It is discovered that integrated use of a variety of rhetorical devices is a significant means for vivid and impressive characterization in literature. Such an analysis is a rewarding journey on either an academic or entertainment basis, and a process of discovery and learning that may particularly be well-received with EFL （English as a Foreign Language） learners
基金the National Natural Science Foundation of China(No.10561003)
文摘A new fixed point theorem and the selection property for upper semi-continuous set-valued mappings in abstract convexity space are established. As their applications the existence of Nash equilibrium for n-person non-cooperative generalized games is proved.
