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Long Term Evolution (LTE) technology gives access to higher bandwidth and assures efficiency at network level for telecommunication operators, providing a reliable and continuous data traffic flow that allows data transmission at extremely high bit-rates. The aim of this paper is to evaluate LTE network performance in an actual urban environment, with emphasis on the downlink channel throughput. The...
Wireless industry through 3G Partnership Project (3GPP), and CTIA The Wireless Association has been studying, validating, and standardizing the 2×2 MIMO Downlink OTA tests since 2009. Especially, CTIA has already provided the guidelines for the MIMO OTA tests in both the Spatial Multiplexing, and Transmit Diversity scenarios [1]. After highlighting some background of the well-documented Spatial Fading...
Assessing the performance of new technologies before deploying it is key for wireless network operators. It allows making the right decision when considering the balance between the gain that can be expected from the new technologies, and the associated deployment cost. In this paper, we propose a method that consists in combining field measurements on LTE live networks, and predictions from link-level...
Coordinated multipoint or cooperative MIMO is one of the promising concepts to improve cell edge user data rate and spectral efficiency beyond what is possible with MIMOOFDM in the first versions of LTE or WiMAX. Interference can be exploited or mitigated by cooperation between sectors or different sites. Significant gains can be shown for both the uplink and downlink. A range of technical challenges...
In time division-high speed packet access plus (TDHSPA+) system, multiple input multiple output (MIMO) technique is adopted to improve spectrum efficiency and transmission reliability. However, most current literature are focused on the large spacing antenna setup, which is impractical for user equipment (UE) because of the size limitation. Therefore, dual polarization antenna scheme is introduced...
Mobile WiMAX as an OFDMA (Orthogonal Frequency Division Multiple Access) mobile broadband air interface is a solution to the requirements for mobile internet services. It has been accepted by ITU as 3G standard last year. The work presented in this paper focuses on evaluation of the Mobile WiMAX system performance in which Full-Queue and VoIP traffic are considered both in downlink and uplink We have...
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