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Device-to-Device (D2D) is considered as a promising technique to improve resource utilization and provide new application in future wireless networks. This paper addresses the problem of radio resource allocation for D2D communication. Basically, resource allocation can be carried out in centralized or distributed manner. In this paper we discuss the mechanisms of distributed resource allocation and...
In this paper, power allocation problem is presented for device-to-device (D2D) communications underlying cellular networks in multi-user scenario. In this scenario, multiple D2D pairs are allowed to share one cellular resource. As a preliminary study, we consider the scenario with only two D2D pairs and propose a power optimization scheme under this scenario. For cellular link and the D2D links sharing...
Device-to-Device (D2D) communication underlying cellular networks and reusing cellular resources enhances the network capacity and spectrum efficiency, but causes severe interference which can degrade the system performance. In this paper, we concentrate on managing the downlink interference from D2D communication to cellular networks when sharing channel resources. First of all, a strategy based...
Against eliminating the multiple access interference (MAI) and sky-wave interference under multi-path channel in the radio navigation system, an improved hybrid interference cancellation (HIC) method that combines the advantages of both the successive interference canceller (SIC) and the parallel interference canceller (PIC) is proposed in this paper. It has the advantages of low complexity and easy...
Pseudo Chaotic Time Hoping (PCTH) is a recently proposed modulation scheme for UWB impulse radio. Unlike a typical TH-UWB, the PCTH-UWB system exploits concepts from symbolic dynamics to generate aperiodic sequences which modulate the position of pulses. The use of aperiodic TH sequence can enhance the spread-spectrum characteristics of UWB system by removing the spectral feature of the transmitted...
In this paper, we present new adaptive and robust methods of reconstruction (ARMOR) for thermoacoustic tomography (TAT), and study their performances for breast cancer detection. TAT is an emerging medical imaging technique that combines the merits of high contrast due to electromagnetic or laser stimulation and high resolution offered by thermal acoustic imaging. The current image reconstruction...
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