aloha

• The thesis takes notice on aloha combined with cdma technology to realize the rdcs . it first constructes a module on the two technologies and emulates it
  本文提出了采用spreadspectrum技术和时分aloha技术( slottedaloha )相结合的新方案来实现区域数据采集系统。
• In order to combine the virtues of reservation anoha and cdma , we bring forward the spread aloha ( sana ) protocol and reservation code multiple - access ( rcma ) protocol and analysis their performance
  为了结合aloha和cdma的优点，在aloha和prma的基础上提出了扩展aloha ( sama )和预约码多址接入rcma ，并对其性能进行了分析。
• “ aloha ! ” she says . outside , a warm sea breeze blows , and the sun is shining . with friendly locals , great weather , and beautiful scenery , hawaii really is paradise1 in the pacific
  “阿罗哈！ ”她说道。机场外，一阵温暖的海风吹过，灿烂的阳光照耀大地。当地和善的居民、宜人的天气加上美丽如画的风景，夏威夷真是太平洋上的乐园。
• It works often in burst mode . the signal channel is complex and large . several protocols can be applied to the system : fixed addressing , committed addressing and stochastic addressing ( aloha ) protocols
  系统使用的多址协议可以是固定分配地址的、按需分配地址的或者是随机接入的，这三种方式中，当网络用户数量大而业务量小，用户间歇工作时候，随机接入多址技术简单而高效。
• Several kind of typical mac protocols in access network were analyzed . investigating and comparing the characteristics among tdma 、 wdma 、 cdma ; random multiple access protocols such as aloha were analyzed ; slotted aloha - cdma multiple access protocol was analyzed too
  分析了以aloha协议为代表的随机多址接入协议的特点,以及固定与随机相结合的时隙aloha - cdma多址接入协议的特点。
• Aloha addressing protocol is most preferred in rdcs because of its characteristics . most of products and studies use stochastic addressing , but they have some defeats such as small capability , large volume , and energy consuming
  从国内外现有的研究和产品来看，一般都是采用随机接入的多址方式，采用fm调制，系统网络容量小，系统集成化不高，采用大量分立元件，终端体积而功耗大。
• And even if a bomb detonates , it might not work as planned ; aloha airlines flight 243 ? and most of its crew and passengers ? survived a structurally related explosive decompression at 24 , 000 feet in 1988 that removed a large section of the top half of the fuselage
  1988年，阿罗哈航空243班机便在7300公尺的高空中因为炸弹爆炸而减压，当时机身的上半部都掀掉了，但大部份的机组人员和乘客却都活了下来。
• Furthermore , the author established a simulation model with opnet and simulated four mac processes , namely the aloha , 1 - perist csma , r - nad and dap - nad for 220b protocol . by analyzing the statistical results , the performance of mil - std - 188 - 220b was validated
  此外，通过opnet网络仿真工具建立了仿真模型，模拟了无线环境中，纯aloha 、 1 -坚持csma 、以及22b的r - nad和dap - nad四种介质访问控制方式的工作过程。
• Utilizing various and high quality grain in huaihe valley and abundant resource and geographical advantage as well as own technology and capital advantage , bbca food has addressed the reasonable combination of premium raw material - oriented and end - consumption oriented productions , so as to build up bbca " aloha " food brand with strong huaihe local culture , natural and healthy , as well as climate and custom
  丰原食品依托淮河五谷杂粮品种繁多、品质天然优良、历史悠久的资源和地理优势以及自身的技术和资本优势，实现了优质原料生产型企业与终端消费品生产型企业的合理结合，创立了丰原"阿罗哈"系列休闲食品品牌，并带着浓厚的淮河乡土文化、天然制品的健康文化和深深的地域风情走出了淮河两岸，走进了千家万户。
• Due to the data transmission characteristics between tags and reader , space division multiple access ( sdma ) , frequency division multiple access ( fdma ) and code division multiple access ( cdma ) are applied in a limited way in rfid system . therefore , time division multiple ( tdma ) has been generally accepted . according to tdma , there are aloha protocol , s - aloha , binary - tree protocol , clipped binary - tree protocol and others
  解决这个问题必须要用到多路存取法，针对射频识别系统中阅读器与应答器之间的通信特点，空分多路法、频分多路法、码分多路法在rfid系统中应用都受到一定的限制，只能应用到一些特定的场合，一般采用时分多路法，按照时分多路法的算法有aloha算法、时隙aloha算法、二进制树型搜索算法、修剪枝的二进制树型搜索算法等防碰撞算法协议，分析了各自特点以及存在的缺点。