The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In a code-multiplexed transmitted-reference (CM-TR) ultra-wideband (UWB) system [8], the reference pulse trains are made orthogonal to the information-bearing signal by code-shifting. The receiver is simple because it avoids the use of an analog delay line. Moreover, the CM-TR UWB system outperforms the original TR-UWB system in terms of error rates. In this paper, we extend the CM-TR concept to transmit...
In this paper a differential-coding method is applied to improved FM-DCSK transmitter to simplify the receiver configuration. Further based on our proposed scheme, a new error correction principle is presented to enhance the noise performance of the purposed system. The BER performance of the different FM-DCSK systems including proposed one is investigated over AWGN channels. Simulation results show...
In this paper STBC is applied to IDMA systems (called STBC-IDMA systems). Performance comparison between STBC-IDMA and uncoded IDMA systems with different number of users, and performances of STBC-IDMA systems with different transmit antennas are investigated over quasi-static Rayleigh fading channel. Simulation results show that the system proposed in this paper owns the same throughput and acquires...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.