Effects of Dominant Other-Sector Interference on Multi-Antenna HSDPA Performance
نویسندگان
چکیده
Link level SINR simulation results and network level sector throughput simulation results that quantify the benefit of dual antenna MMSE reception in a macrocellular HSDPA system are provided. The dual antenna RAKE receiver serves as baseline reference. Link-level simulation results are confirmed by a novel analytical expression that in flat Rayleigh fading and for uncorrelated rx antenna branches provides spatial interference suppression mean SINR gain as a function of the dominant other-sector interference ratio (DIR). It is shown that the MMSE receiver’s spatial interference suppression gain depends heavily on the amount of experienced DIR. The higher the DIR the higher is the SINR gain. Nevertheless, seen on network level SINR gain turns into moderate sector throughput gain, well below 50%. This is due to the fact that high DIR situations are rare in the investigated macrocellular scenario. Moreover, dynamic range limitations hinder translation of the full SINR gain into sector throughput.
منابع مشابه
Effects of Dominant Other-Sector Interference on Dual Rx-Antenna HSDPA Performance
Link level SINR simulation results and network level sector throughput simulation results that quantify the benefit of dual antenna MMSE reception in a macrocellular WCDMA/HSDPA system are provided. Dual antenna RAKE receiver performance serves as baseline reference. Link-level simulation results are accompanied by a novel analytical expression that in flat Rayleigh fading and for uncorrelated ...
متن کاملOn the Performance of Multiuser MIMO Systems in WCDMA/HSDPA: Beamforming, Feedback and User Diversity
Several multiple-input multiple-output (MIMO) techniques have been proposed for 3GPP WCDMA/HSDPA systems and several performance evaluation for the comparison purpose are in progress. Most MIMO candidates in HSDPA have been generally designed for pointto-point communication, which means that a single-user throughput is of their major concern. However, multiple users and user scheduling need to ...
متن کاملAdvanced Antenna Techniques and High Order Sectorization with Novel Network Tessellation for Enhancing Macro Cell Capacity in DC-HSDPA Network
Mobile operators commonly use macro cells with traditional wide beam antennas for wider coverage in the cell, but future capacity demands cannot be achieved by using them only. It is required to achieve maximum practical capacity from macro cells by employing higher order sectorization and by utilizing all possible antenna solutions including smart antennas. This paper presents enhanced tessell...
متن کاملIndoor Planning for High Speed Downlink Packet Access in WCDMA Cellular Network
The aim of this paper is to show the special characteristics of the indoor environment related to radio propagation and furthermore to radio network planning. The aspects of the radio network planning are highlighted especially for Wideband Code Division Multiple Access (WCDMA) radio access technology that is used widely in the third generation mobile networks. Moreover, the detailed planning p...
متن کاملCombined beamforming and scheduling for high speed downlink packet access
Joint operation of High Speed Downlink Packet Access (HSDPA) and adaptive antennas in a WCDMA cellular network is considered. The total throughput per cell of HSDPA depends heavily on the strategy employed by the scheduler. It is argued that the maximum SIR scheduler, which maximizes throughput in the single antenna system by serving only the user with best momentary channel quality, will not s...
متن کامل