LTE capacity compared to the Shannon bound

被引：292

作者：

Mogensen, Preben ^{[1
,2
]}

Na, Wei ^{[1
]}

Kovacs, Istvan Z. ^{[2
]}

Frederiksen, Frank ^{[2
]}

Pokhariyal, Akhilesh ^{[1
]}

Pedersen, Klaus I. ^{[2
]}

Kolding, Troels ^{[2
]}

Hugl, Klaus ^{[3
]}

Kuusela, Markku ^{[3
]}

机构：

[1] Aalborg Univ, Aalborg, Denmark

[2] Nokia Networks, Aalborg, Denmark

[3] Nokia Res Ctr, Helsinki, Finland

来源：

2007 IEEE 65TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6 | 2007年

关键词：

OFDMA; MIMO; Shannon capacity; wireless system and link performance; LTE;

D O I：

10.1109/VETECS.2007.260

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper we propose a modification to Shannon capacity bound in order to facilitate accurate benchmarking of UTRAN Long Term Evolution (LTE). The method is generally applicable to wireless communication systems, while we have used LTE air-interface technology as a case study. We introduces an adjusted Shannon capacity formula, where we take into account the system bandwidth efficiency and the SNR efficiency of LTE. Separating these issues, allows for simplified parameter extraction. We show that the bandwidth efficiency can be calculated based on system parameters, while the SNR efficiency is extracted from detailed link level studies including advanced features of MIMO and frequency domain packet scheduling (FDPS). We then use the adjusted Shannon capacity formula combined with G-factor distributions for macro and micro cell scenarios to predict LTE cell spectral efficiency (SE). Such LTE SE predictions are compared to LTE cell SE results generated by system level simulations. The results show an excellent match of less that 5-10% deviation.

引用

页码：1234 / 1238

页数：5

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