AT&T Wireless is the cellular branch of AT&T services. The company offers a variety of plan options to suit every customer's needs. Choices include unlimited text, talk and data plans, shared data ...

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Straight Talk is a no-contract phone plan that shares networks with four major cellphone service providers. It doesn’t restrict people to long-term contracts, and it offers nationwide coverage and ...

Abstract: Frequency synchronization is essential to achieving the intended performance for single and multicarrier wireless systems. Blind techniques, which don’t require prior channel knowledge or ...