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.
This paper introduces a technique for joint channel control signal estimation for OFDM systems. The basic idea proposed is to embed the control signal information in the pilot sequence such that when it is estimated at the receiver it can reveal both the channel response and the intended control signal information. We also provide a novel technique, which utilizes the channel''s correlation, for recovering...
A performance-enhanced two-transmit antenna spatial modulation (SM) technique is introduced and analysed. Specifically, this paper modifies the conventional spatial modulation technique by utilising simultaneous transmission from two antennas, couple with the utilisation of short orthogonal codes for antenna identification. A unique symbol to antenna assignment to enable the receiver to distinguish...
A simultaneous transmission spatial modulation (SM) technique is introduced in this paper. Unlike in conventional SM where only one antenna transmits at a time, the simultaneous spatial modulation (SSM) transmits from two antennas at the same time. The proposed technique utilizes a unique symbol to antenna assignment algorithm at the transmitter and the SM optimum detector at the receiver. The paper...
This paper introduces and analyses a novel uplink CDMA pairing diversity technique. In particular, this paper considers the use of orthogonal polyphase (OPP) sequences on the synchronous and asynchronous uplink to benefit from the codes' good cross-correlation properties. A code allocation algorithm is also presented in this paper that aims to exploit the cross-correlation properties to achieve the...
A performance-enhanced two-transmit antenna spatial modulation (SM) technique is introduced and analysed. Specifically, this paper modifies the conventional spatial modulation technique by utilising simultaneous transmission from both antennas to improve the diversity aspect and hence the system performance. A unique symbol to antenna assignment to enable the receiver to distinguish between the different...
In this paper we study the performance of orthogonal poly-phase (OPP) sequences on the uplink of asynchronous code division multiple access (CDMA) systems. We explore the application of dynamic code allocation (DCA) of OPP sequences with the objective to minimize multiple access interference (MAI), arising due to the asynchronous transmission, and enhance the system's overall performance. Two DCA...
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.