Terrestrial air navigation3/7/2023 ![]() We show that by accounting for these channel characteristics, our protocol is able to maintain high network-layer performance in a wide range of scenarios compared to a channel-access protocol that assumes homogeneous channels (when in fact the channels are heterogeneous), and channel-access protocols that only consider the data rate associated with a particular traffic channel. We introduce a new channel-access protocol for this type of network such that the selection of a traffic channel for a data packet transmission considers characteristics of the channels such as data rate, range, and load. The radios in this type of network are permitted to utilize multiple nonoverlapping channels, and each channel differs significantly in its characteristics, such as achievable data rate, communication range, and. We consider an ad hoc network consisting of frequency-agile radios that have the ability to change their carrier frequency and transmission rate over a wide range of possibilities. Furthermore, looking at the impacts of different amounts of RBs on 800 MHz + 2.1 GHz CCs, we can conclude that a one-to-one RB ratio with respect to the MR, PF, and RR algorithms has a better performance compared to other cases, and thus, owing to the better channel gain, the smaller the RBs of the 800 MHz CC, the better the performance achieved. On the other hand, in a round-robin (RR) scenario, we were unable to notice any differences between the independent CC and joint CC packet scheduling policies. We also obtained a capacity increase of about 15–40% for a joint CC maximum rate (MR) algorithm and about 2–28 % for a joint CC proportional fair (PF) algorithm when the number of users is increased. According to the results, we found that an 800 MHz CC exhibits approximately 4 dB better channel gains than a 2.1 GHz CC. The course is approved as meeting the competency requirements of Table A-II/I of the STCW, as amended 2010 for Terrestrial Navigation. The performance of the joint CC packet scheduling algorithm on heterogeneous CCs with different channel characteristics has been analyzed and compared through computer simulations as well. the these conditions, a heterogeneous joint CC packet scheduling algorithm interacting with a radio resource control (RRC) is considered in this paper. To support non-contiguous carrier aggregation (CA) with. ![]() UMTS 8, and a by-product of the terrestrial 4G-eligible air interfaces, e.g. However it is able to be changed in the future, so that a study regarding heterogeneous CCs which have diverse RBs above 100 on a CC is needed at this moment. assistance or interactive navigation (real-time traffic. ![]() Component carriers (CCs) in a Long Term Evolution - Advanced (LTE-A) system are limited by maximum 100 radio bearers (RBs) on a 20 MHz CC due to a fixed 15 KHz subcarrier bandwidth.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |