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المؤلفRui, Yun
المؤلفCheng, Peng
المؤلفLi, Mingqi
المؤلفZhang, Q.T.
المؤلفGuizani, Mohsen
تاريخ الإتاحة2022-11-10T09:47:29Z
تاريخ النشر2013
اسم المنشورIEEE Wireless Communications
المصدرScopus
المصدر2-s2.0-84884577011
معرّف المصادر الموحدhttp://dx.doi.org/10.1109/MWC.2013.6590056
معرّف المصادر الموحدhttp://hdl.handle.net/10576/36202
الملخصMultiple access and transmission enhancement in support of carrier aggregation techniques has been actively studied in the 3GPP LTEAdvanced standardization process of the nextgeneration mobile broadband communication systems. By means of carrier aggregation, users can access a total bandwidth of up to 100 MHz in order to meet the IMT-Advanced requirements. This article first introduces and compares several uplink multiple access schemes in LTE-Advanced standard. Technical challenges arising from the use of carrier aggregation is then addressed, with focus on reference signals design for uplink transmission. Meanwhile, various candidate options are summarized and compared in terms of their system performance, computational complexity, and design flexibility. The article further proceeds to investigate the link performance with carrier aggregation, taking into account the presence of frequency offset and fast fading in the uplink channel. Numerical results are also presented, which indicate that advanced signal processing algorithms should be further studied and optimized to ensure reliable operation of the 3GPP LTE-Advanced in high mobility. 2013 IEEE.
اللغةen
الموضوعAdvanced signal processing
Carrier aggregations
Mobile broadband communication systems
Multiple access scheme
Standardization process
Technical challenges
Transmission enhancement
Up-link transmissions
4G mobile communication systems
Frequency allocation
Signal processing
Wireless telecommunication systems
العنوانCarrier aggregation for LTE-advanced: Uplink multiple access and transmission enhancement features
النوعArticle
الصفحات101-108
رقم العدد4
رقم المجلد20


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