现代电信科技
現代電信科技
현대전신과기
MODERN SCIENCE & TECHNOLOGY OF TELECOMMUNICATIONS
2012年
8期
40-45
,共6页
认知无线电%组播路由%时延%频谱分配
認知無線電%組播路由%時延%頻譜分配
인지무선전%조파로유%시연%빈보분배
CR%multicast muting%delay%spectrumassignment
由于认知无线电（CR）网络具有频谱动态性、频谱差异性以及频谱多样性等特点,传统的组播路由策略已不再适合于CR网络,CR组播路由面临新的挑战。结合博弈论知识建立了频谱分配模型并得出了最优的纳什均衡解,详细介绍了基于时延约束的CR的组播路由协议并对其进行了分析,最后指出其进一步的研究方向。
由于認知無線電（CR）網絡具有頻譜動態性、頻譜差異性以及頻譜多樣性等特點,傳統的組播路由策略已不再適閤于CR網絡,CR組播路由麵臨新的挑戰。結閤博弈論知識建立瞭頻譜分配模型併得齣瞭最優的納什均衡解,詳細介紹瞭基于時延約束的CR的組播路由協議併對其進行瞭分析,最後指齣其進一步的研究方嚮。
유우인지무선전（CR）망락구유빈보동태성、빈보차이성이급빈보다양성등특점,전통적조파로유책략이불재괄합우CR망락,CR조파로유면림신적도전。결합박혁론지식건립료빈보분배모형병득출료최우적납십균형해,상세개소료기우시연약속적CR적조파로유협의병대기진행료분석,최후지출기진일보적연구방향。
In light of the characteristics of CR with dynamic spectrum, spectrum differences and diver- sity of the spectrum, the traditional multicast strate-gy can not fit for CR any more. Therefore multicast in CR is confronted with new challenges. According to game theory, the model of spectrum allocation was established and Nash equilibrium was figured out. Then CR muhicast routing protocol based on the delay-constrained was introduced and analyzed in detail. Finally the research directions of CR multicast were pointed out.
