With the proliferation of mobile demands and increasingly multifariousservices and applications, mobile Internet has been an irreversible trend.Unfortunately, the current mobile and wireless network (MWN) faces a series ofpressing challenges caused by the inherent design. In this paper, we extend twolatest and promising innovations of Internet, software-defined networking andnetwork virtualization, to mobile and wireless scenarios. We first describe thechallenges and expectations of MWN, and analyze the opportunities provided bythe software-defined wireless network (SDWN) and wireless networkvirtualization (WNV). Then, this paper focuses on SDWN and WNV by presentingthe main ideas, advantages, ongoing researches and key technologies, and openissues respectively. Moreover, we interpret that these two technologies highlycomplement each other, and further investigate efficient joint design betweenthem. This paper confirms that SDWN and WNV may efficiently address the crucialchallenges of MWN and significantly benefit the future mobile and wirelessnetwork.
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