سال انتشار: ۱۳۹۱

محل انتشار: ششمین کنفرانس بین المللی پیشرفتهای علوم و تکنولوژی

تعداد صفحات: ۸

نویسنده(ها):

A. Z. Yonis – Department of Communication Engineering, Faculty of Electrical and Electronic EngineeringUniversity of Tun Hussein Onn Malaysia, Johor, Malaysia
M.F.L Abdullah –
M.F Ghanim –

چکیده:

One straight forward possibility to reach high data rates requirements is to aggregate multiple Long Term Evolution (LTE) carrier. Two or more component carriers are aggregated in order to support wider transmission bandwidths up to 100MHz. However initial LTE-Advanced (3GPP Release 10) deployments will likely be limited to the use of maximum two component carriers, i.e. the maximum DL/UL bandwidth will be 40MHz for Frequency Division Duplex (FDD). A relatively simple way to further increase individual data transmission speeds is to increase the channel bandwidth. To remain backward compatible with 3GPP Release 8, the maximum carrier bandwidth of 20MHz is not altered. Instead, carrier aggregation is used to combine the capacity of several individual carriers. The aggregated carriers can be adjacent or non-adjacent; they can be in a single band and also in different bands. An individual carrier is referred to in the standards as a component carrier (CC). Carriers can be aggregated asymmetrically in the downlink and the uplink directions. In the downlink direction, for example, carriers in two different bands can be aggregated to a combined 40-MHz channel, while in the uplink direction only a 20-MHz carrier in a single band is used. This paper focuses on the peak data rate which is improved depending on the number of aggregated carriers, with a related impact on the user equipment (UE) complexity