channel n. 1.水路,水道,渠,沟;海峡;河床,河底。 2.(柱等的)槽,凹缝;【机械工程】槽铁,凹形铁。 3.〔比喻〕路线,手段;媒介,脉络,系统,途径。 4.【无、电】波道;电路;信道;磁道;频道。 a talk channel通话线路。 a vision channel电视信道,视频信道。 the (English) C- 英吉利海峡。 C- fever 〔英国〕怀乡病。 channelof command [communication] 指挥[通讯]系统。 through a reliable channel通过可靠途径。 through the proper channel 经由正当途径[手续]。 vt. (〔英国〕-ll-) 1.在…开[形成]水道;在…上凿沟[凹缝]。 2.开(路),开辟(途径)。 3.为…开辟途径,引导。 channel one's interests 对某人的兴趣加以引导。 vi. 形成水道[凹槽]。 n. 〔常 pl.〕【航海】突出舷侧承扣支索的铁板。
Wireless data service is rapidly increasing nowadays . and the limited channel capacity has become a serious problem to the cellular wireless communication system . . current strategy of channel allocation can be divided into two types : fixed channel allocation ( fca ) and dynamic channel allocation . ( dca ) 近十年来,随着移动通信业的发展,移动用户的数量和用户的业务量都以迅猛的速度提升,持续增长的数据业务需求和有限的容量是现有蜂窝系统面临的重大问题。
In chapter 2 , the channel assignment techniques in the inter - spotbeam of the leo - mss are studied . a new channel allocation scheme ica ( namely , initial channel assignment ) is introduced according to the inherent characteristic of leo - mss . the proposed ica scheme can handle non - uniform traffic distribution over the coverage and guarantee the fairness for all cells and the priority for the cells where traffic conditions are heavy 第二章研究leo系统波束切换中的信道分配策略,结合leo系统的自身特点提出简单有效的初始信道分配( initialchannelassignment , ica )策略,该策略可在用户非均匀分布下较好工作,同时保证业务量大的小区的优先级和各小区之间的公平性。