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In this paper, refer to the digital multimedia mobile phone with the combination of broadcasting and the communication the unity of wire and wireless solution that can provide the UMA (unlicensed mobile access) function is added. In UNC(universal naming convention) in the case of CAS (conditional access system) is supported, the device (mobile phone) is(More)
In this paper, We analyzed performance of adaptive modulation system with STTD in vehicle-to-vehicle communication environment. Transmission error of system is increased by ISI according to delay wave in wireless channel environment. Therefore, We analyzed performance that it is applied adaptive modulation system with STTD to reduce ISI's effect. As a(More)
In this paper the coefficient tracking synchronization algorithm is proposed for the compensation and the suitability of the fast channel fluctuation OFDM in the WAVE (wireless access in vehicular environments) system. The progress of standardization WAVE process, IEEE802.11p's physical layer is considered on the coexistence of fading and frequency offset(More)
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