認(rèn)知Ad hoc網(wǎng)絡(luò)的頻譜接入跨層設(shè)計方案
發(fā)布時間:2019-06-17 09:18
【摘要】:為提高分布式認(rèn)知Ad hoc網(wǎng)絡(luò)的頻譜感知精準(zhǔn)性和能量有效性,提出了一種基于能量效率的頻譜接入跨層設(shè)計方案。首先通過基于感知因子的完全二分圖分解法對網(wǎng)絡(luò)進行分簇,進而在簇內(nèi)聯(lián)合優(yōu)化次用戶的發(fā)射功率和接入概率,最終得到最優(yōu)信道接入和功率分配方案。仿真結(jié)果表明,與傳統(tǒng)算法相比,該方案可通過合理分簇提高分布式認(rèn)知網(wǎng)絡(luò)的感知精度,在保證感知性能的條件下使系統(tǒng)能量效率得到有效提升。
[Abstract]:In order to improve the accuracy and energy efficiency of spectrum perception of distributed cognitive Adhoc network, a cross-layer design scheme for spectrum access based on energy efficiency is proposed. The optimal channel access and power distribution scheme are obtained. The simulation results show that compared with traditional algorithm, this scheme can improve the sensing precision of distributed cognitive network through reasonable clustering, and effectively improve the energy efficiency of the system under the condition of ensuring the perceived performance.
【作者單位】: 合肥電子工程學(xué)院;中國人民解放軍61651部隊;
【基金】:安徽省自然科學(xué)基金青年基金資助項目(1608085QF143)
【分類號】:TN925
[Abstract]:In order to improve the accuracy and energy efficiency of spectrum perception of distributed cognitive Adhoc network, a cross-layer design scheme for spectrum access based on energy efficiency is proposed. The optimal channel access and power distribution scheme are obtained. The simulation results show that compared with traditional algorithm, this scheme can improve the sensing precision of distributed cognitive network through reasonable clustering, and effectively improve the energy efficiency of the system under the condition of ensuring the perceived performance.
【作者單位】: 合肥電子工程學(xué)院;中國人民解放軍61651部隊;
【基金】:安徽省自然科學(xué)基金青年基金資助項目(1608085QF143)
【分類號】:TN925
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